Unreal Engine Issues

UE-48974

[CrashReport] UE4Editor_Engine!UEdGraphPin::Modify() [edgraphpin.cpp:619]

[CrashReport] UE4Editor_Engine!UEdGraphPin::Modify() [edgraphpin.cpp:619]

Description

This is an infrequent crash coming out of the 4.17 release.

User Descriptions

  • NICE PIN FIX NOW I CANT ADD VARIABLES NORMALLY

Source Context

 612       void UEdGraphPin::SerializeAsOwningNode(FArchive& Ar, TArray<UEdGraphPin*>& ArrayRef)
  613       {
  614       	UEdGraphPin::SerializePinArray(Ar, ArrayRef, nullptr, EPinResolveType::OwningNode);
  615       }
  616       
  617       bool UEdGraphPin::Modify(bool bAlwaysMarkDirty)
  618 ***** {
  619       	UEdGraphNode* LocalOwningNode = GetOwningNodeUnchecked();
  620       	if (LocalOwningNode)
  621       	{
  622       		return LocalOwningNode->Modify(bAlwaysMarkDirty);
  623       	}
  624       
  625       	return false;
  626       }
Steps to Reproduce

repro steps currently unknown

Callstack
Access violation - code c0000005 (first/second chance not available)

UE4Editor_Engine!UEdGraphPin::Modify() [edgraphpin.cpp:619]
UE4Editor_BlueprintGraph!UEdGraphSchema_K2::CombineTwoPinNetsAndRemoveOldPins() [edgraphschema_k2.cpp:6511]
UE4Editor_BlueprintGraph!UEdGraphSchema_K2::CollapseGatewayNode() [edgraphschema_k2.cpp:6424]
UE4Editor_KismetCompiler!FKismetCompilerContext::ExpandTunnelsAndMacros() [kismetcompiler.cpp:3481]
UE4Editor_KismetCompiler!FKismetCompilerContext::ExpansionStep() [kismetcompiler.cpp:2860]
UE4Editor_KismetCompiler!FKismetCompilerContext::CreateAndProcessUbergraph() [kismetcompiler.cpp:3147]
UE4Editor_KismetCompiler!FKismetCompilerContext::CreateFunctionList() [kismetcompiler.cpp:3601]
UE4Editor_UMGEditor!FWidgetBlueprintCompiler::CreateFunctionList() [widgetblueprintcompiler.cpp:53]
UE4Editor_KismetCompiler!FKismetCompilerContext::CompileClassLayout() [kismetcompiler.cpp:3860]
UE4Editor_Kismet!FBlueprintCompilationManagerImpl::FlushCompilationQueueImpl() [blueprintcompilationmanager.cpp:699]
UE4Editor_Kismet!FBlueprintCompilationManagerImpl::CompileSynchronouslyImpl() [blueprintcompilationmanager.cpp:189]
UE4Editor_UnrealEd!FKismetEditorUtilities::CompileBlueprint() [kismet2.cpp:750]
UE4Editor_Kismet!FBlueprintEditor::Compile() [blueprinteditor.cpp:3291]
UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327]
UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,void __cdecl() [delegateinstancesimpl.h:434]
UE4Editor_Slate!FUICommandList::ExecuteAction() [uicommandlist.cpp:97]
UE4Editor_Slate!SToolBarButtonBlock::OnClicked() [stoolbarbuttonblock.cpp:305]
UE4Editor_Slate!TMemberFunctionCaller<SToolBarButtonBlock,FReply() [delegateinstanceinterface.h:165]
UE4Editor_Slate!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SToolBarButtonBlock,FReply() [tuple.h:497]
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SToolBarButtonBlock,0,FReply __cdecl() [delegateinstancesimpl.h:327]
UE4Editor_Slate!TBaseDelegate<FReply>::Execute() [delegatesignatureimpl.inl:537]
UE4Editor_Slate!SButton::OnMouseButtonUp() [sbutton.cpp:282]
UE4Editor_Slate!<lambda_1002768c627006711ef2f351a87ec0e7>::operator() [slateapplication.cpp:5199]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_1002768c627006711ef2f351a87ec0e7> >() [slateapplication.cpp:232]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [slateapplication.cpp:5188]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [slateapplication.cpp:5690]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [slateapplication.cpp:5670]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1718]
UE4Editor_Core!FWindowsApplication::DeferMessage() [windowsapplication.cpp:2161]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:881]
UE4Editor_Core!FWindowsApplication::AppWndProc() [windowsapplication.cpp:721]
user32!UserCallWinProcCheckWow()
user32!DispatchMessageWorker()
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [windowsplatformmisc.cpp:1009]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3151]
UE4Editor!GuardedMain() [launch.cpp:166]
UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134]
UE4Editor!WinMain() [launchwindows.cpp:210]
UE4Editor!__scrt_common_main_seh() [exe_common.inl:253]
kernel32!BaseThreadInitThunk()
ntdll!RtlUserThreadStart()
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Fixed
ComponentUE - Gameplay - Blueprint
Affects Versions4.17
Target Fix4.17.2, 4.18
Fix Commit3615590
CreatedAug 29, 2017
ResolvedAug 29, 2017
UpdatedApr 27, 2018
View Jira Issue