Unreal Engine Issues

UE-48437

[CrashReport] FText::IsEmpty | UTextProperty::Identical_Implementation

[CrashReport] FText::IsEmpty | UTextProperty::Identical_Implementation

Description

This is a trending crash coming out of the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred.

Source Context

  257       FText::FText( FString&& InSourceString, const FString& InNamespace, const FString& InKey, uint32 InFlags )
  258       	: TextData(new TLocalizedTextData<FTextHistory_Base>(FTextLocalizationManager::Get().GetDisplayString(InNamespace, InKey, &InSourceString)))
  259       	, Flags(InFlags)
  260       {
  261       	TextData->SetTextHistory(FTextHistory_Base(MoveTemp(InSourceString)));
  262       }
  263       
  264       bool FText::IsEmpty() const
  265       {
  266 ***** 	return TextData->GetDisplayString().IsEmpty();
  267       }
  268       
  269       bool FText::IsEmptyOrWhitespace() const
  270       {
  271       	const FString& DisplayString = TextData->GetDisplayString();
  272       	if (DisplayString.IsEmpty())
  273       	{
  274       		return true;
  275       	}
  276       
  277       	for( const TCHAR Character : DisplayString )
  278       	{
  279       		if (!IsWhitespace(Character))
  280       		{
  281       			return false;
Steps to Reproduce

repro steps currently unknown

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

UE4Editor_Core!FText::IsEmpty() [text.cpp:267]
UE4Editor_CoreUObject!UTextProperty::Identical_Implementation() [textproperty.cpp:48]
UE4Editor_CoreUObject!UTextProperty::Identical() [textproperty.cpp:82]
UE4Editor_CoreUObject!UStruct::SerializeTaggedProperties() [class.cpp:1120]
UE4Editor_Engine!UUserDefinedStruct::SerializeTaggedProperties() [userdefinedstruct.cpp:231]
UE4Editor_CoreUObject!UScriptStruct::SerializeItem() [class.cpp:2002]
UE4Editor_CoreUObject!UStructProperty::SerializeItem() [propertystruct.cpp:119]
UE4Editor_CoreUObject!FPropertyTag::SerializeTaggedProperty() [propertytag.cpp:188]
UE4Editor_CoreUObject!UStruct::SerializeTaggedProperties() [class.cpp:1154]
UE4Editor_CoreUObject!UObject::SerializeScriptProperties() [obj.cpp:1282]
UE4Editor_CoreUObject!UObject::Serialize() [obj.cpp:1216]
UE4Editor_Engine!FCPFUOWriter::FCPFUOWriter() [unrealengine.cpp:11638]
UE4Editor_Engine!UEngine::CopyPropertiesForUnrelatedObjects() [unrealengine.cpp:11747]
UE4Editor_KismetCompiler!FKismetCompilerContext::CompileFunctions() [kismetcompiler.cpp:4058]
UE4Editor_KismetCompiler!FKismet2CompilerModule::CompileBlueprintInner() [kismetcompilermodule.cpp:132]
UE4Editor_KismetCompiler!FKismet2CompilerModule::CompileBlueprint() [kismetcompilermodule.cpp:232]
UE4Editor_UnrealEd!FBlueprintEditorUtils::MarkBlueprintAsStructurallyModified() [blueprinteditorutils.cpp:2096]
UE4Editor_UnrealEd!FBlueprintEditorUtils::RefreshAllNodes() [blueprinteditorutils.cpp:534]
UE4Editor_Kismet!FBlueprintCompilationManagerImpl::FlushCompilationQueueImpl() [blueprintcompilationmanager.cpp:839]
UE4Editor_Kismet!FBlueprintCompilationManagerImpl::CompileSynchronouslyImpl() [blueprintcompilationmanager.cpp:188]
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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Cannot Reproduce
ComponentUE - Gameplay - Blueprint
Affects Versions4.17
Target Fix4.17.2
Fix Commit3616028
CreatedAug 15, 2017
ResolvedAug 29, 2017
UpdatedApr 27, 2018
View Jira Issue