Engine crash when i copy paste blueprint(on UE 4.7.6)

when i copy selection of blueprint to paste to other class blueprint, engine crash.

After engine crash, the crash reporter stop response after it show message a few second.

Can anybody help me?

The following content is copy from file, directory: (ProjectName)/Saved/log (crash at 9/23 AM 09:xx GMT+8)

=============================================================================

[2015.06.03-01.14.20:597][898]LogCrashTracker:

[2015.06.03-01.14.20:597][898]LogWindows: === Critical error: ===
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000048

UE4Editor-Kismet.dll!UEdGraph::GetNodesOfClassEx() (0x00007ffa0fe12ca9) + 12 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\classes\edgraph\edgraph.h:162]
UE4Editor-Kismet.dll!FBlueprintVarActionDetails::CustomizeDetails() (0x00007ffa0fed103b) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\kismet\private\blueprintdetailscustomization.cpp:636]
UE4Editor-PropertyEditor.dll!SDetailsViewBase::QueryLayoutForClass() (0x00007ffa0ee17e03) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\propertyeditor\private\sdetailsviewbase.cpp:497]
UE4Editor-PropertyEditor.dll!SDetailsViewBase::QueryCustomDetailLayout() (0x00007ffa0ee17ac3) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\propertyeditor\private\sdetailsviewbase.cpp:622]
UE4Editor-PropertyEditor.dll!SDetailsViewBase::UpdatePropertyMap() (0x00007ffa0ee5adf2) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\propertyeditor\private\sdetailsviewbase.cpp:1180]
UE4Editor-PropertyEditor.dll!SDetailsView::PostSetObject() (0x00007ffa0ee078ce) + 8 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\propertyeditor\private\sdetailsview.cpp:599]
UE4Editor-PropertyEditor.dll!SDetailsView::SetObjectArrayPrivate() (0x00007ffa0ee40b68) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\propertyeditor\private\sdetailsview.cpp:455]
UE4Editor-PropertyEditor.dll!SDetailsView::SetObjects() (0x00007ffa0ee4139d) + 13 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\propertyeditor\private\sdetailsview.cpp:305]
UE4Editor-Kismet.dll!SKismetInspector::MakeContextualEditingWidget() (0x00007ffa10186e55) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\kismet\private\skismetinspector.cpp:85]
UE4Editor-Kismet.dll!SKismetInspector::UpdateFromObjects() (0x00007ffa101b9ab6) + 85 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\kismet\private\skismetinspector.cpp:567]
UE4Editor-Kismet.dll!SKismetInspector::Tick() (0x00007ffa101b6790) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\editor\kismet\private\skismetinspector.cpp:45]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd483) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:638]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() (0x00007ffa199bc7d1) + 135 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:30]
UE4Editor-Slate.dll!SBorder::OnPaint() (0x00007ffa128a2538) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\widgets\layout\sborder.cpp:101]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() (0x00007ffa199bca75) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:102]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() (0x00007ffa199bd9dc) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:45]
UE4Editor-SlateCore.dll!SPanel::OnPaint() (0x00007ffa199bcbac) + 68 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:24]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() (0x00007ffa199bc7d1) + 135 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:30]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() (0x00007ffa199bd9dc) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:45]
UE4Editor-Slate.dll!SSplitter::OnPaint() (0x00007ffa128a55f7) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\widgets\layout\ssplitter.cpp:169]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() (0x00007ffa199bc7d1) + 135 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:30]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() (0x00007ffa199bd9dc) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:45]
UE4Editor-Slate.dll!SSplitter::OnPaint() (0x00007ffa128a55f7) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\widgets\layout\ssplitter.cpp:169]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() (0x00007ffa199bca75) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:102]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() (0x00007ffa199bc7d1) + 135 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:30]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() (0x00007ffa199bd9dc) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:45]
UE4Editor-SlateCore.dll!SPanel::OnPaint() (0x00007ffa199bcbac) + 68 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:24]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() (0x00007ffa199bc7d1) + 135 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:30]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() (0x00007ffa199bc7d1) + 135 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:30]
UE4Editor-Slate.dll!SBorder::OnPaint() (0x00007ffa128a2538) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\widgets\layout\sborder.cpp:101]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() (0x00007ffa199bca75) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:102]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() (0x00007ffa199bd9dc) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:45]
UE4Editor-SlateCore.dll!SPanel::OnPaint() (0x00007ffa199bcbac) + 68 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:24]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() (0x00007ffa199bc7d1) + 135 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:30]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() (0x00007ffa199bd9dc) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:45]
UE4Editor-Slate.dll!SSplitter::OnPaint() (0x00007ffa128a55f7) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\widgets\layout\ssplitter.cpp:169]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() (0x00007ffa199bca75) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:102]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() (0x00007ffa199bc7d1) + 135 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:30]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() (0x00007ffa199bd9dc) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:45]
UE4Editor-SlateCore.dll!SPanel::OnPaint() (0x00007ffa199bcbac) + 68 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:24]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() (0x00007ffa199bd9dc) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:45]
UE4Editor-SlateCore.dll!SPanel::OnPaint() (0x00007ffa199bcbac) + 68 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\spanel.cpp:24]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() (0x00007ffa199bca75) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:102]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() (0x00007ffa199bc7d1) + 135 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:30]
UE4Editor-SlateCore.dll!SWidget::Paint() (0x00007ffa199bd4dd) + 63 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swidget.cpp:639]
UE4Editor-SlateCore.dll!SWindow::PaintWindow() (0x00007ffa199bdb16) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slatecore\private\widgets\swindow.cpp:1660]
UE4Editor-Slate.dll!FSlateApplication::DrawWindowAndChildren() (0x00007ffa126e1ae4) + 235 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:927]
UE4Editor-Slate.dll!FSlateApplication::PrivateDrawWindows() (0x00007ffa12722b91) + 20 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1107]
UE4Editor-Slate.dll!FSlateApplication::Tick() (0x00007ffa127403ff) + 12 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1323]
UE4Editor.exe!FEngineLoop::Tick() (0x00007ff7e2e8036f) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launchengineloop.cpp:2284]
UE4Editor.exe!GuardedMain() (0x00007ff7e2e7267c) + 0 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\launch.cpp:142]
UE4Editor.exe!GuardedMainWrapper() (0x00007ff7e2e726ea) + 5 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor.exe!WinMain() (0x00007ff7e2e82219) + 17 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor.exe!__tmainCRTStartup() (0x00007ff7e2e83159) + 21 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]
KERNEL32.DLL!UnknownFunction (0x00007ffa3eaf13d2) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffa408b5444) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffa408b5444) + 0 bytes [UnknownFile:0]

[2015.06.03-01.14.20:734][898]LogExit: Executing StaticShutdownAfterError
[2015.06.03-01.14.20:741][898]LogWindows: FPlatformMisc::RequestExit(1)
[2015.06.03-01.14.20:741][898]Log file closed, 06/03/15 09:14:20

=============================================================================

Hey ,

Have you been able to reproduce this in any other project? Also, have you tried creating a copy of the project you’re currently working in and moving to 4.8.0 Preview 4? I have not been able to reproduce this crash in 4.8.0 Preview 4, which would help you greatly.

Looking forward to hearing back from you, thanks! :slight_smile:

hi ,

I use “migrate” to copy my map and assets to new blank project which has StarterContent.
I do the same thing(copy the section of blueprint to other class blueprint), Still crash.

I guess the reason of crash ralated to class blueprint inherit.
The Inheritance structure is B classBP inherit A classBP, and the thing i do is copy section BP from B paste to A

The UE4.8 P4 is not install completely, after install finish i will try it.

the crash report
[JustPaste.it - Share Text & Images the Easy Way][1]

Thanks for your reply and help. :smiley:

JustPaste.it - Share Text & Images the Easy Way

,

Can you recreate the exact blueprint without copying it over and reproduce the crash? If so, could you give me the exact reproduction steps so that I can verify this one our end and report it to our developers?

Thank you! :slight_smile:

:

I try to use simple way to reproduce the crash but fail.
I have other thing which is urgent to do. so i am not able to spend more time to reproduce the problem with the more complete environment

When this problem appear, it has other problem at the same time.
I’m not sure that problem is related to this problem.
That problem seldom crash engine.
[Can't Compile with no error, use "cast to xxx" function - Programming & Scripting - Epic Developer Community Forums][1]

I’ll try my best.

Can't Compile with no error, use "cast to xxx" function - Programming & Scripting - Epic Developer Community Forums

Hey ,

I know that you’ve stated you didn’t have enough time to work on the completion of the reproduction steps however, I was wondering if you ever upgraded to 4.8? I am able to copy and paste into the blueprint editor without crashing my editor in 4.8 preview 4.

:

I open the project copy from problem project using UE4.8 Preview 4.
The problem did not appear again and doesn’t crash engine so far.
I will use 4.8 the stable version after it appear several days.
The main reason is to avoid the problems I can’t be handled, because I am a beginner ha ha.

Thanks for your help!!

You’re very welcome. :slight_smile: