SDL_GL_MakeCurrent fails

In current master.
OpenGLLinux.cpp in fn _ContextMakeCurrent.

SDL_GetError returns the string “Invalid Window”
OpenGl Context is 3.2, running nvidia 3.40 driver, GeForce GT 640

Steps to reproduce: open the custom blueprint dialog and close it on linux.
Editor dies.

You need to add logging functions if you want to see the Invalid Window msg from SDL_GetError:

(gdb) where
#0  0x00007f682477dbb9 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f6824780fc8 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f6833407770 in FGenericPlatformMisc::RequestExit (Force=true)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Private/GenericPlatform/GenericPlatformMisc.cpp:355
#3  0x00007f68335a5222 in GenerateCrashInfoAndLaunchReporter (Context=...)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Private/Linux/LinuxPlatformCrashContext.cpp:742
#4  0x000000000046ed93 in EngineCrashHandler (GenericContext=...) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Launch/Private/Linux/LaunchLinux.cpp:45
#5  0x00007f68335aa318 in PlatformCrashHandler (Signal=11, Info=0x7fff5ba90bf0, Context=0x7fff5ba90ac0)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Private/Linux/LinuxPlatformCrashContext.cpp:786
#6  <signal handler called>
#7  0x00007f68335b9ae5 in RaiseException (ExceptionCode=1) at Runtime/Core/Public/GenericPlatform/GenericPlatformMisc.h:405
#8  FOutputDeviceLinuxError::Serialize (this=0x7f6833faba78 <FLinuxOutputDevices::GetError()::Singleton>, 
    Msg=0x7fff5ba923e0 L"Assertion failed: Assertion failed: !Result [File:/home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/OpenGLDrv/Private/Linux/OpenGLLinux.cpp] [Line: 28] \n\n", Verbosity=ELogVerbosity::Log, Category=...) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Private/Linux/LinuxPlatformOutputDevices.cpp:112
#9  0x00007f683374b9cc in FOutputDevice::Logf (this=0x7f6833faba78 <FLinuxOutputDevices::GetError()::Singleton>, Fmt=0x7f6833c1db70 L"Assertion failed: %s [File:%s] [Line: %i] \n%s\n")
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Private/Misc/OutputDevice.cpp:144
#10 0x00007f683370c2aa in FDebug::AssertFailed (Expr=0x7f68078e626f "!Result", 
    File=0x7f68078e361b "/home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/OpenGLDrv/Private/Linux/OpenGLLinux.cpp", Line=28, Format=0x7f68078d7f44 L"")
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Private/Misc/OutputDevice.cpp:224
#11 0x00007f6807788ede in _ContextMakeCurrent (hWnd=0x5e85f20, hGLDC=0x5fa6150) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/OpenGLDrv/Private/Linux/OpenGLLinux.cpp:28
#12 0x00007f68077cb451 in FScopeContext::FScopeContext (this=0x7fff5ba98800, Context=0xd0e6a20)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/OpenGLDrv/Private/Linux/OpenGLLinux.cpp:68
#13 0x00007f68077888af in PlatformReleaseOpenGLContext (Device=0x1b76840, Context=0xd0e6a20)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/OpenGLDrv/Private/Linux/OpenGLLinux.cpp:305
#14 0x00007f6807787e7d in PlatformDestroyOpenGLContext (Device=0x1b76840, Context=0xd0e6a20)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/OpenGLDrv/Private/Linux/OpenGLLinux.cpp:337
#15 0x00007f6807787dc8 in FOpenGLViewport::~FOpenGLViewport (this=0x124356a0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/OpenGLDrv/Private/OpenGLViewport.cpp:234
#16 0x00007f6807787ec9 in FOpenGLViewport::~FOpenGLViewport (this=0x124356a0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/OpenGLDrv/Private/OpenGLViewport.cpp:220
#17 0x00007f682e1102b2 in FRHIResource::Release (this=0x124356a0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/RHI/Public/RHIResources.h:39
#18 0x00007f682f6da54f in TRefCountPtr<FRHIViewport>::operator= (this=0x15c604f8, InReference=0x0)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/RefCounting.h:97
#19 0x00007f682f69525f in TRefCountPtr<FRHIViewport>::SafeRelease (this=0x15c604f8) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/RefCounting.h:140
#20 0x00007f683057f63d in FSceneViewport::ReleaseDynamicRHI (this=0x15c60440) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Engine/Private/Slate/SceneViewport.cpp:1307
#21 0x00007f683057f6bc in non-virtual thunk to FSceneViewport::ReleaseDynamicRHI() ()
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Engine/Private/Slate/SceneViewport.cpp:1313
#22 0x00007f682bba29fa in FRenderResource::ReleaseResource (this=0x15c60458) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/RenderCore/Private/RenderResource.cpp:46
#23 0x00007f683064b3f3 in FSceneViewport::ReleaseResource (this=0x15c60440) at Runtime/Engine/Public/Slate/SceneViewport.h:233
#24 0x00007f683064b83c in non-virtual thunk to FSceneViewport::ReleaseResource() () at Runtime/Engine/Public/Slate/SceneViewport.h:233
#25 0x00007f682bbaa63c in BeginReleaseResource(FRenderResource*)::EURCMacro_ReleaseCommand::DoTask(ENamedThreads::Type, TRefCountPtr<FGraphEvent> const&) (this=0x7fff5ba98d28, 
    CurrentThread=ENamedThreads::GameThread, MyCompletionGraphEvent=...) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/RenderCore/Private/RenderResource.cpp:144
#26 0x00007f682bba8d9a in BeginReleaseResource (Resource=0x15c60458) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/RenderCore/Private/RenderResource.cpp:144
#27 0x00007f6830579d10 in FSceneViewport::UpdateViewportRHI (this=0x15c60440, bDestroyed=true, NewSizeX=0, NewSizeY=0, NewWindowMode=EWindowMode::Windowed)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Engine/Private/Slate/SceneViewport.cpp:1090
#28 0x00007f683056cede in FSceneViewport::Destroy (this=0x15c60440) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Engine/Private/Slate/SceneViewport.cpp:131
#29 0x00007f683056b4ca in FSceneViewport::~FSceneViewport (this=0x15c60440) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Engine/Private/Slate/SceneViewport.cpp:41
#30 0x00007f683056b699 in FSceneViewport::~FSceneViewport (this=0x15c60440) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Engine/Private/Slate/SceneViewport.cpp:40
#31 0x00007f682e63cb1e in SharedPointerInternals::DestroyObject<FSceneViewport> (Object=0x15c60440)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#32 0x00007f682e5ffbe8 in ReleaseSharedReference (State=0x167b42e0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#33 ~FSharedReferencer (this=0x15c61978) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#34 TSharedPtr<FSceneViewport, (ESPMode)0>::~TSharedPtr (this=0x15c61970) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointer.h:731
#35 0x00007f6827062010 in SEditorViewport::~SEditorViewport (this=0x15c61780) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Editor/UnrealEd/Private/SEditorViewport.cpp:32
#36 0x00007f681e996ef0 in SSCSEditorViewport::~SSCSEditorViewport (this=0x15c61780) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Editor/Kismet/Private/SSCSEditorViewport.cpp:208
#37 0x00007f681e996f19 in SSCSEditorViewport::~SSCSEditorViewport (this=0x15c61780) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Editor/Kismet/Private/SSCSEditorViewport.cpp:202
#38 0x00007f681e51b71e in SharedPointerInternals::DestroyObject<SSCSEditorViewport> (Object=0x15c61780) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#39 0x0000000000492098 in ReleaseSharedReference (State=0x1201aa00) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#40 ~FSharedReferencer (this=0x16adb9c0) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#41 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x16adb9b8) at Runtime/Core/Public/Templates/SharedPointer.h:734
#42 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x16adb9b0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#43 0x00007f682f6b8d05 in TSlotBase<FSimpleSlot>::~TSlotBase (this=0x16adb9b0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/SlotBase.h:49
#44 0x00007f682f6b8cd5 in TSupportsOneChildMixin<FSimpleSlot>::~TSupportsOneChildMixin (this=0x16adb9a8)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:62
#45 0x00007f682f6b8c21 in FSimpleSlot::~FSimpleSlot (this=0x16adb9a8) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:164
#46 0x00007f682f6b895b in SCompoundWidget::~SCompoundWidget (this=0x16adb880) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Widgets/SCompoundWidget.h:10
#47 0x00007f682f6b9abf in SBorder::~SBorder (this=0x16adb880) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Slate/Public/Widgets/Layout/SBorder.h:12
#48 0x00007f682ad24e39 in SBorder::~SBorder (this=0x16adb880) at Runtime/Slate/Public/Widgets/Layout/SBorder.h:12
#49 0x00007f682c5a8d0e in SharedPointerInternals::DestroyObject<SBorder> (Object=0x16adb880) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#50 0x0000000000492098 in ReleaseSharedReference (State=0xde86100) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#51 ~FSharedReferencer (this=0x16b02250) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#52 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x16b02248) at Runtime/Core/Public/Templates/SharedPointer.h:734
#53 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x16b02240) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#54 0x00007f682c5ad615 in TSlotBase<SOverlay::FOverlaySlot>::~TSlotBase (this=0x16b02240) at Runtime/SlateCore/Public/SlotBase.h:49
#55 0x00007f682c5ad5c1 in SOverlay::FOverlaySlot::~FOverlaySlot (this=0x16b02240) at Runtime/SlateCore/Public/Widgets/SOverlay.h:27
#56 0x00007f682a2c6cd6 in TIndirectArray<SOverlay::FOverlaySlot, FDefaultAllocator>::DestructAndFreeItems (this=0x16b23330) at Runtime/Core/Public/Containers/Array.h:3286
#57 0x00007f682a2c6c6c in TIndirectArray<SOverlay::FOverlaySlot, FDefaultAllocator>::Empty (this=0x16b23330, Slack=0) at Runtime/Core/Public/Containers/Array.h:3162
#58 0x00007f682a2c76ca in TIndirectArray<SOverlay::FOverlaySlot, FDefaultAllocator>::~TIndirectArray (this=0x16b23330) at Runtime/Core/Public/Containers/Array.h:2861
#59 0x00007f682a2c7665 in TPanelChildren<SOverlay::FOverlaySlot>::~TPanelChildren (this=0x16b23328) at Runtime/SlateCore/Public/Layout/Children.h:181
#60 0x00007f682a2b4ef5 in SOverlay::~SOverlay (this=0x16b23200) at Runtime/SlateCore/Public/Widgets/SOverlay.h:100
#61 0x00007f682a2b4f29 in SOverlay::~SOverlay (this=0x16b23200) at Runtime/SlateCore/Public/Widgets/SOverlay.h:99
#62 0x00007f682e643dce in SharedPointerInternals::DestroyObject<SOverlay> (Object=0x16b23200)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#63 0x0000000000492098 in ReleaseSharedReference (State=0xde86120) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#64 ~FSharedReferencer (this=0x13e93310) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#65 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x13e93308) at Runtime/Core/Public/Templates/SharedPointer.h:734
#66 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x13e93300) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#67 0x00007f682f6f18d5 in TSlotBase<SBoxPanel::FSlot>::~TSlotBase (this=0x13e93300) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/SlotBase.h:49
#68 0x00007f682f6ba515 in SBoxPanel::FSlot::~FSlot (this=0x13e93300) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Widgets/SBoxPanel.h:22
#69 0x00007f682f6ba476 in TIndirectArray<SBoxPanel::FSlot, FDefaultAllocator>::DestructAndFreeItems (this=0x16b235b0)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Containers/Array.h:3286
#70 0x00007f682f6ba40c in TIndirectArray<SBoxPanel::FSlot, FDefaultAllocator>::Empty (this=0x16b235b0, Slack=0)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Containers/Array.h:3162
#71 0x00007f682f6ba3ba in TIndirectArray<SBoxPanel::FSlot, FDefaultAllocator>::~TIndirectArray (this=0x16b235b0)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Containers/Array.h:2861
#72 0x00007f682f6ba365 in TPanelChildren<SBoxPanel::FSlot>::~TPanelChildren (this=0x16b235a8)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:181
#73 0x00007f682f6ba325 in SBoxPanel::~SBoxPanel (this=0x16b23480) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Widgets/SBoxPanel.h:9
#74 0x00007f682c5a0de5 in SVerticalBox::~SVerticalBox (this=0x16b23480) at Runtime/SlateCore/Public/Widgets/SBoxPanel.h:233
#75 0x00007f682c5a0e09 in SVerticalBox::~SVerticalBox (this=0x16b23480) at Runtime/SlateCore/Public/Widgets/SBoxPanel.h:233
#76 0x00007f682c5a0dbe in SharedPointerInternals::DestroyObject<SVerticalBox> (Object=0x16b23480) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#77 0x0000000000492098 in ReleaseSharedReference (State=0xde86a40) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#78 ~FSharedReferencer (this=0x12e4cdc0) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#79 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x12e4cdb8) at Runtime/Core/Public/Templates/SharedPointer.h:734
#80 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x12e4cdb0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#81 0x00007f682f6b8d05 in TSlotBase<FSimpleSlot>::~TSlotBase (this=0x12e4cdb0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/SlotBase.h:49
#82 0x00007f682f6b8cd5 in TSupportsOneChildMixin<FSimpleSlot>::~TSupportsOneChildMixin (this=0x12e4cda8)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:62
#83 0x00007f682f6b8c21 in FSimpleSlot::~FSimpleSlot (this=0x12e4cda8) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:164
#84 0x00007f682f6b895b in SCompoundWidget::~SCompoundWidget (this=0x12e4cc80) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Widgets/SCompoundWidget.h:10
#85 0x00007f682aa0a7d1 in SDockingNode::~SDockingNode (this=0x12e4cc80) at Runtime/Slate/Private/Framework/Docking/SDockingNode.h:11
#86 0x00007f682aa0aadd in SDockingTabStack::~SDockingTabStack (this=0x12e4cc80) at Runtime/Slate/Private/Framework/Docking/SDockingTabStack.h:12
#87 0x00007f682aa0ab09 in SDockingTabStack::~SDockingTabStack (this=0x12e4cc80) at Runtime/Slate/Private/Framework/Docking/SDockingTabStack.h:12
#88 0x00007f682aa3d3de in SharedPointerInternals::DestroyObject<SDockingTabStack> (Object=0x12e4cc80) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#89 0x0000000000492098 in ReleaseSharedReference (State=0xde86b20) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#90 ~FSharedReferencer (this=0x16b02020) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#91 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x16b02018) at Runtime/Core/Public/Templates/SharedPointer.h:734
#92 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x16b02010) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#93 0x00007f682add9795 in TSlotBase<SSplitter::FSlot>::~TSlotBase (this=0x16b02010) at Runtime/SlateCore/Public/SlotBase.h:49
#94 0x00007f682ad4e2a5 in SSplitter::FSlot::~FSlot (this=0x16b02010) at Runtime/Slate/Public/Widgets/Layout/SSplitter.h:38
#95 0x00007f682add9706 in TIndirectArray<SSplitter::FSlot, FDefaultAllocator>::DestructAndFreeItems (this=0x2d2c530) at Runtime/Core/Public/Containers/Array.h:3286
#96 0x00007f682add969c in TIndirectArray<SSplitter::FSlot, FDefaultAllocator>::Empty (this=0x2d2c530, Slack=0) at Runtime/Core/Public/Containers/Array.h:3162
#97 0x00007f682add964a in TIndirectArray<SSplitter::FSlot, FDefaultAllocator>::~TIndirectArray (this=0x2d2c530) at Runtime/Core/Public/Containers/Array.h:2861
#98 0x00007f682ad1da15 in TPanelChildren<SSplitter::FSlot>::~TPanelChildren (this=0x2d2c528) at Runtime/SlateCore/Public/Layout/Children.h:181
#99 0x00007f682ad25a87 in SSplitter::~SSplitter (this=0x2d2c400) at Runtime/Slate/Public/Widgets/Layout/SSplitter.h:19
#100 0x00007f682ad25ab9 in SSplitter::~SSplitter (this=0x2d2c400) at Runtime/Slate/Public/Widgets/Layout/SSplitter.h:19
#101 0x00007f682aa3ba7e in SharedPointerInternals::DestroyObject<SSplitter> (Object=0x2d2c400) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#102 0x0000000000492098 in ReleaseSharedReference (State=0x12759180) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#103 ~FSharedReferencer (this=0xd6c92c0) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#104 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0xd6c92b8) at Runtime/Core/Public/Templates/SharedPointer.h:734
#105 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0xd6c92b0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#106 0x00007f682f6b8d05 in TSlotBase<FSimpleSlot>::~TSlotBase (this=0xd6c92b0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/SlotBase.h:49
#107 0x00007f682f6b8cd5 in TSupportsOneChildMixin<FSimpleSlot>::~TSupportsOneChildMixin (this=0xd6c92a8)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:62
#108 0x00007f682f6b8c21 in FSimpleSlot::~FSimpleSlot (this=0xd6c92a8) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:164
#109 0x00007f682f6b895b in SCompoundWidget::~SCompoundWidget (this=0xd6c9180) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Widgets/SCompoundWidget.h:10
#110 0x00007f682aa0a7d1 in SDockingNode::~SDockingNode (this=0xd6c9180) at Runtime/Slate/Private/Framework/Docking/SDockingNode.h:11
#111 0x00007f682aa0a9e3 in SDockingSplitter::~SDockingSplitter (this=0xd6c9180) at Runtime/Slate/Private/Framework/Docking/SDockingSplitter.h:7
#112 0x00007f682aa0aa09 in SDockingSplitter::~SDockingSplitter (this=0xd6c9180) at Runtime/Slate/Private/Framework/Docking/SDockingSplitter.h:7
#113 0x00007f682aa37fae in SharedPointerInternals::DestroyObject<SDockingSplitter> (Object=0xd6c9180) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#114 0x0000000000492098 in ReleaseSharedReference (State=0x12759100) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#115 ~FSharedReferencer (this=0x16b01fd0) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#116 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x16b01fc8) at Runtime/Core/Public/Templates/SharedPointer.h:734
#117 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x16b01fc0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#118 0x00007f682add9795 in TSlotBase<SSplitter::FSlot>::~TSlotBase (this=0x16b01fc0) at Runtime/SlateCore/Public/SlotBase.h:49
#119 0x00007f682ad4e2a5 in SSplitter::FSlot::~FSlot (this=0x16b01fc0) at Runtime/Slate/Public/Widgets/Layout/SSplitter.h:38
#120 0x00007f682add9706 in TIndirectArray<SSplitter::FSlot, FDefaultAllocator>::DestructAndFreeItems (this=0x122d0530) at Runtime/Core/Public/Containers/Array.h:3286
#121 0x00007f682add969c in TIndirectArray<SSplitter::FSlot, FDefaultAllocator>::Empty (this=0x122d0530, Slack=0) at Runtime/Core/Public/Containers/Array.h:3162
#122 0x00007f682add964a in TIndirectArray<SSplitter::FSlot, FDefaultAllocator>::~TIndirectArray (this=0x122d0530) at Runtime/Core/Public/Containers/Array.h:2861
#123 0x00007f682ad1da15 in TPanelChildren<SSplitter::FSlot>::~TPanelChildren (this=0x122d0528) at Runtime/SlateCore/Public/Layout/Children.h:181
#124 0x00007f682ad25a87 in SSplitter::~SSplitter (this=0x122d0400) at Runtime/Slate/Public/Widgets/Layout/SSplitter.h:19
#125 0x00007f682ad25ab9 in SSplitter::~SSplitter (this=0x122d0400) at Runtime/Slate/Public/Widgets/Layout/SSplitter.h:19
#126 0x00007f682aa3ba7e in SharedPointerInternals::DestroyObject<SSplitter> (Object=0x122d0400) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#127 0x0000000000492098 in ReleaseSharedReference (State=0xd657160) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#128 ~FSharedReferencer (this=0x11ec4140) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#129 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x11ec4138) at Runtime/Core/Public/Templates/SharedPointer.h:734
#130 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x11ec4130) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#131 0x00007f682c5ad615 in TSlotBase<SOverlay::FOverlaySlot>::~TSlotBase (this=0x11ec4130) at Runtime/SlateCore/Public/SlotBase.h:49
#132 0x00007f682c5ad5c1 in SOverlay::FOverlaySlot::~FOverlaySlot (this=0x11ec4130) at Runtime/SlateCore/Public/Widgets/SOverlay.h:27
#133 0x00007f682a2c6cd6 in TIndirectArray<SOverlay::FOverlaySlot, FDefaultAllocator>::DestructAndFreeItems (this=0xd3d78f0) at Runtime/Core/Public/Containers/Array.h:3286
#134 0x00007f682a2c6c6c in TIndirectArray<SOverlay::FOverlaySlot, FDefaultAllocator>::Empty (this=0xd3d78f0, Slack=0) at Runtime/Core/Public/Containers/Array.h:3162
#135 0x00007f682a2c76ca in TIndirectArray<SOverlay::FOverlaySlot, FDefaultAllocator>::~TIndirectArray (this=0xd3d78f0) at Runtime/Core/Public/Containers/Array.h:2861
#136 0x00007f682a2c7665 in TPanelChildren<SOverlay::FOverlaySlot>::~TPanelChildren (this=0xd3d78e8) at Runtime/SlateCore/Public/Layout/Children.h:181
#137 0x00007f682a2b4ef5 in SOverlay::~SOverlay (this=0xd3d77c0) at Runtime/SlateCore/Public/Widgets/SOverlay.h:100
#138 0x00007f682a2b4f29 in SOverlay::~SOverlay (this=0xd3d77c0) at Runtime/SlateCore/Public/Widgets/SOverlay.h:99
#139 0x00007f682e643dce in SharedPointerInternals::DestroyObject<SOverlay> (Object=0xd3d77c0)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#140 0x0000000000492098 in ReleaseSharedReference (State=0xd658e80) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#141 ~FSharedReferencer (this=0x123fcd40) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#142 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x123fcd38) at Runtime/Core/Public/Templates/SharedPointer.h:734
#143 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x123fcd30) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#144 0x00007f682f6b8d05 in TSlotBase<FSimpleSlot>::~TSlotBase (this=0x123fcd30) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/SlotBase.h:49
#145 0x00007f682f6b8cd5 in TSupportsOneChildMixin<FSimpleSlot>::~TSupportsOneChildMixin (this=0x123fcd28)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:62
#146 0x00007f682f6b8c21 in FSimpleSlot::~FSimpleSlot (this=0x123fcd28) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:164
#147 0x00007f682f6b895b in SCompoundWidget::~SCompoundWidget (this=0x123fcc00) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Widgets/SCompoundWidget.h:10
#148 0x00007f682aa0a7d1 in SDockingNode::~SDockingNode (this=0x123fcc00) at Runtime/Slate/Private/Framework/Docking/SDockingNode.h:11
#149 0x00007f682aa0a9e3 in SDockingSplitter::~SDockingSplitter (this=0x123fcc00) at Runtime/Slate/Private/Framework/Docking/SDockingSplitter.h:7
#150 0x00007f682aa0a943 in SDockingArea::~SDockingArea (this=0x123fcc00) at Runtime/Slate/Private/Framework/Docking/SDockingArea.h:10
#151 0x00007f682aa0a969 in SDockingArea::~SDockingArea (this=0x123fcc00) at Runtime/Slate/Private/Framework/Docking/SDockingArea.h:10
#152 0x00007f682aa3dcce in SharedPointerInternals::DestroyObject<SDockingArea> (Object=0x123fcc00) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#153 0x0000000000492098 in ReleaseSharedReference (State=0xd65ace0) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#154 ~FSharedReferencer (this=0x7f67cc2d3590) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#155 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x7f67cc2d3588) at Runtime/Core/Public/Templates/SharedPointer.h:734
#156 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x7f67cc2d3580) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#157 0x00007f682f6f18d5 in TSlotBase<SBoxPanel::FSlot>::~TSlotBase (this=0x7f67cc2d3580) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/SlotBase.h:49
#158 0x00007f682f6ba515 in SBoxPanel::FSlot::~FSlot (this=0x7f67cc2d3580) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Widgets/SBoxPanel.h:22
#159 0x00007f682f6ba476 in TIndirectArray<SBoxPanel::FSlot, FDefaultAllocator>::DestructAndFreeItems (this=0x7f67cc310570)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Containers/Array.h:3286
#160 0x00007f682f6ba40c in TIndirectArray<SBoxPanel::FSlot, FDefaultAllocator>::Empty (this=0x7f67cc310570, Slack=0)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Containers/Array.h:3162
#161 0x00007f682f6ba3ba in TIndirectArray<SBoxPanel::FSlot, FDefaultAllocator>::~TIndirectArray (this=0x7f67cc310570)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Containers/Array.h:2861
#162 0x00007f682f6ba365 in TPanelChildren<SBoxPanel::FSlot>::~TPanelChildren (this=0x7f67cc310568)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:181
#163 0x00007f682f6ba325 in SBoxPanel::~SBoxPanel (this=0x7f67cc310440) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Widgets/SBoxPanel.h:9
#164 0x00007f682c5a0de5 in SVerticalBox::~SVerticalBox (this=0x7f67cc310440) at Runtime/SlateCore/Public/Widgets/SBoxPanel.h:233
#165 0x00007f682c5a0e09 in SVerticalBox::~SVerticalBox (this=0x7f67cc310440) at Runtime/SlateCore/Public/Widgets/SBoxPanel.h:233
#166 0x00007f682c5a0dbe in SharedPointerInternals::DestroyObject<SVerticalBox> (Object=0x7f67cc310440) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#167 0x0000000000492098 in ReleaseSharedReference (State=0x12758020) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#168 ~FSharedReferencer (this=0x127031c8) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#169 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x127031c0) at Runtime/Core/Public/Templates/SharedPointer.h:734
#170 0x00007f682a18097c in FSlotBase::~FSlotBase (this=0x127031b8) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/SlotBase.cpp:45
#171 0x00007f682f6b8d05 in TSlotBase<FSimpleSlot>::~TSlotBase (this=0x127031b8) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/SlotBase.h:49
#172 0x00007f682f6b8cd5 in TSupportsOneChildMixin<FSimpleSlot>::~TSupportsOneChildMixin (this=0x127031b0)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:62
#173 0x00007f682f6b8c21 in FSimpleSlot::~FSimpleSlot (this=0x127031b0) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Layout/Children.h:164
#174 0x00007f682f6b895b in SCompoundWidget::~SCompoundWidget (this=0x12703088) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Public/Widgets/SCompoundWidget.h:10
#175 0x00007f682807acf9 in SStandaloneAssetEditorToolkitHost::~SStandaloneAssetEditorToolkitHost (this=0x12703080)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Editor/UnrealEd/Private/Toolkits/SStandaloneAssetEditorToolkitHost.cpp:211
#176 0x00007f682807b3c9 in SStandaloneAssetEditorToolkitHost::~SStandaloneAssetEditorToolkitHost (this=0x12703080)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Editor/UnrealEd/Private/Toolkits/SStandaloneAssetEditorToolkitHost.cpp:206
#177 0x00007f68280e852e in SharedPointerInternals::DestroyObject<SStandaloneAssetEditorToolkitHost> (Object=0x12703080)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#178 0x0000000000492098 in ReleaseSharedReference (State=0xd0e6160) at Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#179 ~FSharedReferencer (this=0x98154c8) at Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#180 TSharedRef<SWidget, (ESPMode)0>::~TSharedRef (this=0x98154c0) at Runtime/Core/Public/Templates/SharedPointer.h:734
#181 0x00007f682abc8a93 in SDockTab::~SDockTab (this=0x9815220) at Runtime/Slate/Public/Widgets/Docking/SDockTab.h:30
#182 0x00007f682abc8ae9 in SDockTab::~SDockTab (this=0x9815220) at Runtime/Slate/Public/Widgets/Docking/SDockTab.h:30
#183 0x00007f682aa10abe in SharedPointerInternals::DestroyObject<SDockTab> (Object=0x9815220) at Runtime/Core/Public/Templates/SharedPointerInternals.h:273
#184 0x00007f682fd6aff8 in ReleaseSharedReference (State=0xd0e5d40) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h:241
#185 ~FSharedReferencer (this=0x16b84e68) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h:344
#186 TSharedRef<SDockTab, (ESPMode)0>::~TSharedRef (this=0x16b84e60) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Public/Templates/SharedPointer.h:403
#187 0x00007f682a9f9433 in DestructItems<TSharedRef<SDockTab, 0> > (Element=0x16b84e60, Count=1) at Runtime/Core/Public/Templates/MemoryOps.h:70
#188 TArray<TSharedRef<SDockTab, (ESPMode)0>, FDefaultAllocator>::~TArray (this=0x7fff5ba9bf78) at Runtime/Core/Public/Containers/Array.h:578
#189 0x00007f682a986582 in SDockingArea::OnOwningWindowBeingDestroyed (this=0x12705100, WindowBeingDestroyed=...)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Slate/Private/Framework/Docking/SDockingArea.cpp:425
#190 0x00007f682aa3a0fc in TMemberFunctionCaller<SDockingArea, void (SDockingArea::*)(TSharedRef<SWindow, (ESPMode)0> const&)>::operator()<TSharedRef<SWindow, (ESPMode)0> const&> (
    this=0x7fff5ba9c180, Args=...) at Runtime/Core/Public/Delegates/DelegateInstanceInterface_Variadics.h:161
#191 0x00007f682aa3a039 in TTupleImpl<TIntegerSequence<>>::ApplyAfter_ExplicitReturnType<void, TMemberFunctionCaller<SDockingArea, void (SDockingArea::*)(TSharedRef<SWindow, (ESPMode)0> const&)>, TSharedRef<SWindow, (ESPMode)0> const&>(TMemberFunctionCaller<SDockingArea, void (SDockingArea::*)(TSharedRef<SWindow, (ESPMode)0> const&)>&&, TSharedRef<SWindow, (ESPMode)0> const&) const (
    this=0x7f67cc4c9118, Func=<unknown type in /home/blaize/proj/unreal/UnrealEngine_master/Engine/Binaries/Linux/libUE4Editor-Slate-Linux-Debug.so, CU 0x0, DIE 0x1544e5>, Args=...)
    at Runtime/Core/Public/Delegates/Tuple.h:78
#192 0x00007f682aa39eb4 in TBaseSPMethodDelegateInstance<false, SDockingArea, (ESPMode)0, TTypeWrapper<void> (TSharedRef<SWindow, (ESPMode)0> const&)>::Execute(TSharedRef<SWindow, (ESPMode)0> const&) const (this=0x7f67cc4c90f0, Params=...) at Runtime/Core/Public/Delegates/DelegateInstancesImpl_Variadics.inl:283
#193 0x00007f682a2b25c6 in TBaseDelegate<TTypeWrapper<void>, TSharedRef<SWindow, (ESPMode)0> const&>::Execute (this=0x9814818, Params=...)
    at Runtime/Core/Public/Delegates/DelegateSignatureImpl_Variadics.inl:439
#194 0x00007f682a1a38f4 in SWindow::RequestDestroyWindow (this=0x9814470) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/SlateCore/Private/Widgets/SWindow.cpp:1055
#195 0x00007f682aa89d2d in SWindowTitleBar::CloseButton_OnClicked (this=0x1227c900) at Runtime/Slate/Public/Framework/Application/SWindowTitleBar.h:412
#196 0x00007f682aa8f03c in TMemberFunctionCaller<SWindowTitleBar, FReply (SWindowTitleBar::*)()>::operator()<>() (this=0x7fff5ba9c528)
    at Runtime/Core/Public/Delegates/DelegateInstanceInterface_Variadics.h:161
#197 0x00007f682aa8ef70 in TTupleImpl<TIntegerSequence<>>::ApplyAfter_ExplicitReturnType<FReply, TMemberFunctionCaller<SWindowTitleBar, FReply (SWindowTitleBar::*)()>>(TMemberFunctionCaller<SWindowTitleBar, FReply (SWindowTitleBar::*)()>&&) const (this=0x7f67cc4ca078, 
    Func=<unknown type in /home/blaize/proj/unreal/UnrealEngine_master/Engine/Binaries/Linux/libUE4Editor-Slate-Linux-Debug.so, CU 0x0, DIE 0x18998c>) at Runtime/Core/Public/Delegates/Tuple.h:78
#198 0x00007f682aa8ef17 in TBaseSPMethodDelegateInstance<false, SWindowTitleBar, (ESPMode)0, FReply ()>::Execute() const (this=0x7f67cc4ca050)
    at Runtime/Core/Public/Delegates/DelegateInstancesImpl_Variadics.inl:283
#199 0x00007f682ad0688a in TBaseDelegate<FReply>::Execute (this=0x12e49e48) at Runtime/Core/Public/Delegates/DelegateSignatureImpl_Variadics.inl:439
#200 0x00007f682ac5c4f0 in SButton::OnMouseButtonUp (this=0x12e49b80, MyGeometry=..., MouseEvent=...)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Slate/Private/Widgets/Input/SButton.cpp:225
#201 0x00007f682a9d930e in FSlateApplication::ProcessMouseButtonUpEvent(FPointerEvent&)::$_16::operator()(FArrangedWidget const&, FPointerEvent const&) const (this=0x7fff5ba9cf40, 
    TargetWidget=..., Event=...) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Slate/Private/Framework/Application/SlateApplication.cpp:4060
#202 0x00007f682a94681c in FEventRouter::Route<FReply, FEventRouter::FToLeafmostPolicy, FPointerEvent, FSlateApplication::ProcessMouseButtonUpEvent(FPointerEvent&)::$_16>(FSlateApplication*, FEventRouter::FToLeafmostPolicy, FPointerEvent, FSlateApplication::ProcessMouseButtonUpEvent(FPointerEvent&)::$_16 const&) (ThisApplication=0x2237cc0, RoutingPolicy=..., EventCopy=..., Lambda=...)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Slate/Private/Framework/Application/SlateApplication.cpp:209
#203 0x00007f682a8fc289 in FSlateApplication::ProcessMouseButtonUpEvent (this=0x2237cc0, MouseEvent=...)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Slate/Private/Framework/Application/SlateApplication.cpp:4051
#204 0x00007f682a9465c5 in FSlateApplication::OnMouseUp (this=0x2237cc0, Button=EMouseButtons::Left)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Slate/Private/Framework/Application/SlateApplication.cpp:4023
#205 0x00007f682a9466a2 in non-virtual thunk to FSlateApplication::OnMouseUp(EMouseButtons::Type) ()
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Slate/Private/Framework/Application/SlateApplication.cpp:4024
#206 0x00007f6833591b63 in FLinuxApplication::ProcessDeferredMessage (this=0x484a3a0, Event=...)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Private/Linux/LinuxApplication.cpp:366
#207 0x00007f683359067e in FLinuxApplication::AddPendingEvent (this=0x484a3a0, SDLEvent=...)
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Private/Linux/LinuxApplication.cpp:174
#208 0x00007f683359047e in FLinuxPlatformMisc::PumpMessages (bFromMainLoop=true) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Core/Private/Linux/LinuxPlatformMisc.cpp:215
#209 0x0000000000442d46 in FEngineLoop::Tick (this=0x6bcfc8 <GEngineLoop>) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Launch/Private/LaunchEngineLoop.cpp:2235
#210 0x00000000004389f3 in EngineTick () at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Launch/Private/Launch.cpp:51
#211 0x00000000004539f5 in GuardedMain (CmdLine=0x1cb5e00 L" \"/home/blaize/Documents/Unreal Projects/MyProject4/MyProject4.uproject\"")
    at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Launch/Private/Launch.cpp:144
#212 0x0000000000470a16 in main (argc=2, argv=0x7fff5baa8f38) at /home/blaize/proj/unreal/UnrealEngine_master/Engine/Source/Runtime/Launch/Private/Linux/LaunchLinux.cpp:193

The underlying issue is Slate deleting the window before associated GL context. While the higher level issue is being investigated, I patched this up with this commit: https://github.com/EpicGames/UnrealEngine/commit/30c7af9e29e2cfbfc72fec2c7059574629f55942 so the editor should no longer crash (but may leak resources).

Thank you RCL