The editor seems to be intermittently crashing when switching the value of a Map variable. I've only been able to get this to occur when switching from one type to a Vector at this time.
Result: Editor Crashes
Access violation - code c0000005 (first/second chance not available)
UE4Editor_CoreUObject!FScriptSet::RemoveAt() set.h:1376 UE4Editor_CoreUObject!FScriptMapHelper::RemoveAt() unrealtype.h:3182 UE4Editor_CoreUObject!UMapProperty::ConvertFromType() propertymap.cpp:954 UE4Editor_CoreUObject!UStruct::SerializeTaggedProperties() class.cpp:1050 UE4Editor_CoreUObject!UObject::SerializeScriptProperties() obj.cpp:1230 UE4Editor_CoreUObject!UObject::Serialize() obj.cpp:1164 UE4Editor_Engine!UEngine::CopyPropertiesForUnrelatedObjects() unrealengine.cpp:11579 UE4Editor_KismetCompiler!FKismetCompilerContext::Compile() kismetcompiler.cpp:3831 UE4Editor_KismetCompiler!FKismet2CompilerModule::CompileBlueprintInner() kismetcompilermodule.cpp:131 UE4Editor_KismetCompiler!FKismet2CompilerModule::CompileBlueprint() kismetcompilermodule.cpp:247 UE4Editor_UnrealEd!FKismetEditorUtilities::CompileBlueprint() kismet2.cpp:840 UE4Editor_Kismet!FBlueprintEditor::Compile() blueprinteditor.cpp:3292 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:504 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:278 UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() slateapplication.cpp:5016 UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() slateapplication.cpp:239 UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:5005 UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:5472 UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:5449 UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1698 UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:2120 UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:867 UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:714 user32!<Unknown> user32!<Unknown> UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:980 UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:3018 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!<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-42937 in the post.
| 0 |
| Component | UE - Gameplay - Blueprint |
|---|---|
| Affects Versions | 4.15, 4.16 |
| Target Fix | 4.16 |
| Fix Commit | 3352352 |
|---|---|
| Main Commit | 3358685 |
| Created | Mar 15, 2017 |
|---|---|
| Resolved | Mar 17, 2017 |
| Updated | Jul 31, 2018 |