Ensure occurs when the user breaks a link in the animation blueprint's Event Graph and then undo's the action.
I wasn't able to reproduce it in a class blueprint.
RESULT:
Ensure occurs.
UE4Editor_Engine!UEdGraphPin::DestroyImpl() edgraphpin.cpp:1196 UE4Editor_BlueprintGraph!UK2Node::RewireOldPinsToNewPins() k2node.cpp:672 UE4Editor_BlueprintGraph!UK2Node::ReconstructNode() k2node.cpp:412 UE4Editor_KismetCompiler!FAnimBlueprintCompiler::CreateEvaluationHandlerStruct() animblueprintcompiler.cpp:257 UE4Editor_KismetCompiler!FAnimBlueprintCompiler::ProcessAnimationNode() animblueprintcompiler.cpp:539 UE4Editor_KismetCompiler!FAnimBlueprintCompiler::ProcessAllAnimationNodes() animblueprintcompiler.cpp:1024 UE4Editor_KismetCompiler!FAnimBlueprintCompiler::MergeUbergraphPagesIn() animblueprintcompiler.cpp:1653 UE4Editor_KismetCompiler!FKismetCompilerContext::CreateAndProcessUbergraph() kismetcompiler.cpp:2583 UE4Editor_KismetCompiler!FKismetCompilerContext::CreateFunctionList() kismetcompiler.cpp:3101 UE4Editor_KismetCompiler!FKismetCompilerContext::Compile() kismetcompiler.cpp:3347 UE4Editor_KismetCompiler!FKismet2CompilerModule::CompileBlueprintInner() kismetcompilermodule.cpp:94 UE4Editor_KismetCompiler!FKismet2CompilerModule::CompileBlueprint() kismetcompilermodule.cpp:186 UE4Editor_UnrealEd!FBlueprintEditorUtils::MarkBlueprintAsStructurallyModified() blueprinteditorutils.cpp:2282 UE4Editor_Kismet!FixSubObjectReferencesPostUndoRedo() blueprinteditormodule.cpp:155 UE4Editor_UnrealEd!UEditorEngine::BroadcastPostUndo() editorserver.cpp:5086 UE4Editor_UnrealEd!UEditorEngine::HandleTransactorUndo() editorserver.cpp:1105 UE4Editor_UnrealEd!TBaseUObjectMethodDelegateInstance<0,UEditorEngine,TTypeWrapper<void> __cdecl() delegateinstancesimpl.h:756 UE4Editor_UnrealEd!TBaseUObjectMethodDelegateInstance<0,UEditorEngine,void __cdecl() delegateinstancesimpl.h:846 UE4Editor_UnrealEd!TBaseMulticastDelegate<void,FUndoSessionContext,bool>::Broadcast() delegatesignatureimpl.inl:921 UE4Editor_UnrealEd!UTransBuffer::Undo() editortransaction.cpp:857 UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,TTypeWrapper<void> __cdecl() delegateinstancesimpl.h:317 UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,void __cdecl() delegateinstancesimpl.h:423 UE4Editor_Slate!FUICommandList::ConditionalProcessCommandBindings() uicommandlist.cpp:206 UE4Editor_Slate!FUICommandList::ProcessCommandBindings() uicommandlist.cpp:150 UE4Editor_UnrealEd!FBaseToolkit::ProcessCommandBindings() basetoolkit.cpp:77 UE4Editor_UnrealEd!SStandaloneAssetEditorToolkitHost::OnKeyDown() sstandaloneasseteditortoolkithost.cpp:335 UE4Editor_Slate!<lambda_2afcd964c763e269e2d1a63f3a72f846>::operator() slateapplication.cpp:4504 UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FKeyEvent,<lambda_2afcd964c763e269e2d1a63f3a72f846> >() slateapplication.cpp:215 UE4Editor_Slate!FEventRouter::RouteAlongFocusPath<FEventRouter::FBubblePolicy,<lambda_2afcd964c763e269e2d1a63f3a72f846>,FKeyEvent>() slateapplication.cpp:197 UE4Editor_Slate!FSlateApplication::ProcessKeyDownEvent() slateapplication.cpp:4502 UE4Editor_Slate!FSlateApplication::OnKeyDown() slateapplication.cpp:4417 UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1419 UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:1930 UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:747 UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:669 user32!<Unknown> user32!<Unknown> UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:905 UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2784 UE4Editor!GuardedMain() launch.cpp:156 UE4Editor!GuardedMainWrapper() launchwindows.cpp:126 UE4Editor!WinMain() launchwindows.cpp:202 UE4Editor!__scrt_common_main_seh() exe_common.inl:264 kernel32!<Unknown> ntdll!<Unknown>
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-33423 in the post.
| 0 |
| Component | UE - Gameplay - Blueprint Editor |
|---|---|
| Affects Versions | 4.13 |
| Target Fix | 4.13 |
| Created | Jul 18, 2016 |
|---|---|
| Resolved | Aug 1, 2016 |
| Updated | Apr 27, 2018 |