Defining a FRuntimeFloatCurve inside a code based struct causes the editor to crash if the struct is added as a local variable to a blueprint function and the "Create External Curve" button is pressed.
This crash only occurs if the struct is a local variable of a function.
#include "Runtime/Engine/Classes/Curves/CurveFloat.h"
USTRUCT(BlueprintType, Blueprintable)
struct MYPROJECT11_API FMyCustomCurve
{
GENERATED_BODY()
public:
UPROPERTY(config,BlueprintReadWrite, EditAnywhere, meta = (
DisplayName = "Custom Tween Curve",
XAxisName = "Alpha", YAxisName = "Value"))
FRuntimeFloatCurve CustomCurve;
};
Result:
Editor crashes with the shown callstack
Expected:
Window for "Choose Location for External Curve Asset" opens when button is clicked.
MachineId:7156C35640F86204E61B8383F45DEE17 EpicAccountId:e8c7fa630b6440f69a25a2c64d6c482c Access violation - code c0000005 (first/second chance not available) UE4Editor_CoreUObject!UObjectBaseUtility::GetName() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\coreuobject\public\uobject\uobjectbaseutility.h:345] UE4Editor_DetailCustomizations!FCurveStructCustomization::OnCreateButtonClicked() [d:\build\++ue4+release-4.13+compile\sync\engine\source\editor\detailcustomizations\private\curvestructcustomization.cpp:268] UE4Editor_DetailCustomizations!TMemberFunctionCaller<FCurveStructCustomization,FReply (__cdecl FCurveStructCustomization::*)(void) __ptr64>::operator()<>() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\core\public\delegates\delegateinstanceinterface.h:161] UE4Editor_DetailCustomizations!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<FCurveStructCustomization,FReply (__cdecl FCurveStructCustomization::*)(void) __ptr64> >() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\core\public\delegates\tuple.h:115] UE4Editor_DetailCustomizations!TBaseSPMethodDelegateInstance<0,FCurveStructCustomization,0,FReply __cdecl(void)>::Execute() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:317] UE4Editor_Slate!TBaseDelegate<FReply>::Execute() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:521] UE4Editor_Slate!SButton::OnMouseButtonUp() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:278] UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator()() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4901] UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:215] UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4890] UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5348] UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5328] UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:1584] UE4Editor_Core!FWindowsApplication::DeferMessage() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:1930] UE4Editor_Core!FWindowsApplication::ProcessMessage() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:747] UE4Editor_Core!FWindowsApplication::AppWndProc() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:669] user32 user32 UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:905] UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2788] UE4Editor!GuardedMain() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\launch\private\launch.cpp:156] UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126] UE4Editor!WinMain() [d:\build\++ue4+release-4.13+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:202] UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264] kernel32 ntdll
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| 0 |
| Component | UE - Gameplay - Blueprint |
|---|---|
| Affects Versions | 4.13 |
| Target Fix | 4.16 |
| Fix Commit | 3253983 |
|---|---|
| Main Commit | 3255791 |
| Created | Sep 6, 2016 |
|---|---|
| Resolved | Jan 11, 2017 |
| Updated | Feb 5, 2017 |