Declaring a TMap with an FIntVector key (ex: TMap<FIntVector, int32>) will cause the editor to crash when adding an element to the map.
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = test) TMap<FIntVector, int32> Blocks;
Result:
Editor crashes with provided callstack
Expected:
TMap element added without crash
UE4Editor_CoreUObject!UScriptStruct::GetStructTypeHash() [class.cpp:2332] UE4Editor_CoreUObject!FScriptSet::Rehash() [set.h:1430] UE4Editor_CoreUObject!UMapProperty::CopyValuesInternal() [propertymap.cpp:708] UE4Editor_CoreUObject!FObjectInitializer::InitProperties() [uobjectglobals.cpp:3119] UE4Editor_CoreUObject!FObjectInitializer::PostConstructInit() [uobjectglobals.cpp:2834] UE4Editor_CoreUObject!FObjectInitializer::~FObjectInitializer() [uobjectglobals.cpp:2745] UE4Editor_CoreUObject!StaticConstructObject_Internal() [uobjectglobals.cpp:3271] UE4Editor_CoreUObject!FDuplicateDataWriter::GetDuplicatedObject() [duplicatedatawriter.cpp:161] UE4Editor_CoreUObject!FDuplicateDataWriter::operator<<() [duplicatedatawriter.cpp:67] UE4Editor_Engine!operator<<() [array.h:1120] UE4Editor_Engine!ULevel::Serialize() [level.cpp:353] UE4Editor_CoreUObject!StaticDuplicateObjectEx() [uobjectglobals.cpp:2090] UE4Editor_CoreUObject!StaticDuplicateObject() [uobjectglobals.cpp:1996] UE4Editor_UnrealEd!ObjectTools::DuplicateSingleObject() [objecttools.cpp:500] UE4Editor_UnrealEd!SaveWorld() [filehelpers.cpp:536] UE4Editor_UnrealEd!FEditorFileUtils::SaveMap() [filehelpers.cpp:2311] UE4Editor_UnrealEd!SaveAsImplementation() [filehelpers.cpp:912] UE4Editor_UnrealEd!FEditorFileUtils::SaveLevelAs() [filehelpers.cpp:1041] UE4Editor_LevelEditor!FLevelEditorActionCallbacks::SaveAs() [leveleditoractions.cpp:390] UE4Editor_LevelEditor!TBaseStaticDelegateInstance<void __cdecl() [delegateinstancesimpl.h:1027] UE4Editor_Slate!FUICommandList::ExecuteAction() [uicommandlist.cpp:97] UE4Editor_Slate!SMenuEntryBlock::OnClicked() [smenuentryblock.cpp:1041] UE4Editor_Slate!SMenuEntryBlock::OnMenuItemButtonClicked() [smenuentryblock.cpp:1001] UE4Editor_Slate!TMemberFunctionCaller<SMenuEntryBlock,FReply() [delegateinstanceinterface.h:165] UE4Editor_Slate!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SMenuEntryBlock,FReply() [tuple.h:134] UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,0,FReply __cdecl() [delegateinstancesimpl.h:327] UE4Editor_Slate!TBaseDelegate<FReply>::Execute() [delegatesignatureimpl.inl:537] UE4Editor_Slate!SButton::OnMouseButtonUp() [sbutton.cpp:278] UE4Editor_Slate!SMenuEntryButton::OnMouseButtonUp() [smenuentryblock.cpp:399] UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() [slateapplication.cpp:5075] UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() [slateapplication.cpp:238] UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [slateapplication.cpp:5064] UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [slateapplication.cpp:5531] UE4Editor_Slate!FSlateApplication::OnMouseUp() [slateapplication.cpp:5508] 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:2977] UE4Editor!GuardedMain() [launch.cpp:166] UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134] UE4Editor!WinMain() [launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [exe_common.inl:264] kernel32!<Unknown> ntdll!<Unknown>
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| 1 |
| Component | UE - Gameplay - Blueprint |
|---|---|
| Affects Versions | 4.15 |
| Target Fix | 4.16 |
| Fix Commit | 3376961 |
|---|---|
| Main Commit | 3380073 |
| Created | Mar 21, 2017 |
|---|---|
| Resolved | Apr 3, 2017 |
| Updated | Apr 27, 2018 |