I cannot open this blenspace in 4.14 (windows 7, epic launcher). Editor crashes with the following log:
[2016.12.06-15.03.06:198][116]LogWindows:Error: Assertion failed: TrianglesMade==2 [File:D:\Build\++UE4+Release-4.14+Compile\Sync\Engine\Source\Editor\Persona\Private\SAnimationBlendSpace.cpp] [Line: 373]
In previous versions it worked well. Note that in the blendspace, few nodes shares the same animation: 1 and 11, 2 and 12, 6 and 7 and 8. See the “Samples” tab on the screenshot. [Zip of the .uasset][1] Animations are from MovementAnimsetPro from the marketplace.
Edit: Full trace
MachineId:DE4818304BF580BE1960EAA9B9CA0723
EpicAccountId:c75483d178184173983e8a43bc4ecaee
Assertion failed: TrianglesMade==2 [File:D:\Build++UE4+Release-4.14+Compile\Sync\Engine\Source\Editor\Persona\Private\SAnimationBlendSpace.cpp] [Line: 373]
Assertion failed: TrianglesMade==2 [File:D:\Build\++UE4+Release-4.14+Compile\Sync\Engine\Source\Editor\Persona\Private\SAnimationBlendSpace.cpp] [Line: 373]
UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:332]
UE4Editor_Persona!FDelaunayTriangleGenerator::FlipTriangles() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\persona\private\sanimationblendspace.cpp:375]
UE4Editor_Persona!FDelaunayTriangleGenerator::GenerateTriangles() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\persona\private\sanimationblendspace.cpp:463]
UE4Editor_Persona!FDelaunayTriangleGenerator::Triangulate() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\persona\private\sanimationblendspace.cpp:153]
UE4Editor_Persona!SBlendSpaceGridWidget::ResampleData() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\persona\private\sanimationblendspace.cpp:829]
UE4Editor_Persona!SBlendSpaceEditor::UpdateBlendParameters() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\persona\private\sanimationblendspace.cpp:1476]
UE4Editor_Persona!SBlendSpaceEditor::Construct() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\persona\private\sanimationblendspace.cpp:1438]
UE4Editor_Persona!TDecl<SBlendSpaceEditor,RequiredArgs::T2RequiredArgs<TSharedRef<IPersonaPreviewScene,0> && __ptr64,TMulticastDelegate<void> & __ptr64> >::operator<<=() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slatecore\public\widgets\declarativesyntaxsupport.h:1079]
UE4Editor_Persona!FPersonaModule::CreateEditorWidgetForAnimDocument() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\persona\private\personamodule.cpp:306]
UE4Editor_AnimationEditor!FAnimationEditor::OpenNewAnimationDocumentTab() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\animationeditor\private\animationeditor.cpp:338]
UE4Editor_AnimationEditor!FAnimationEditor::InitAnimationEditor() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\animationeditor\private\animationeditor.cpp:117]
UE4Editor_AnimationEditor!FAnimationEditorModule::CreateAnimationEditor() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\animationeditor\private\animationeditormodule.cpp:34]
UE4Editor_AssetTools!FAssetTypeActions_AnimationAsset::OpenAssetEditor() [d:\build\++ue4+release-4.14+compile\sync\engine\source\developer\assettools\private\assettypeactions\assettypeactions_animationasset.cpp:127]
UE4Editor_UnrealEd!FAssetEditorManager::OpenEditorForAsset() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\toolkits\asseteditormanager.cpp:338]
UE4Editor_Kismet!FBlueprintEditor::OnNodeDoubleClicked() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\kismet\private\blueprinteditor.cpp:6439]
UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,TTypeWrapper<void> __cdecl(UEdGraphNode * __ptr64)>::Execute() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:318]
UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,void __cdecl(UEdGraphNode * __ptr64)>::ExecuteIfSafe() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:425]
UE4Editor_GraphEditor!SGraphNode::OnMouseButtonDoubleClick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\editor\grapheditor\private\sgraphnode.cpp:394]
UE4Editor_Slate!<lambda_eeb33fd1b480e3cad58a1531d90d2e14>::operator()() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5404]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FPointerEvent,<lambda_eeb33fd1b480e3cad58a1531d90d2e14> >() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:215]
UE4Editor_Slate!FSlateApplication::RoutePointerDoubleClickEvent() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5402]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonDoubleClickEvent() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5387]
UE4Editor_Slate!FSlateApplication::OnMouseDoubleClick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5365]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:1656]
UE4Editor_Core!FWindowsApplication::DeferMessage() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:2071]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:814]
UE4Editor_Core!FWindowsApplication::AppWndProc() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:678]
user32
user32
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:951]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2811]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launch.cpp:152]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\build\++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264]
kernel32
ntdll