Description

This report has been logged due to a high volume of submitted crash reports. Additional information is not currently available.

User Descriptions

  • i create A game ENd Crash
  • i was trying to create a landscape
  • editing heightmaps. My landscape keeps disappearing randomly

Source Context

 751       FReply FLandscapeEditorCustomNodeBuilder_TargetLayers::HandleDragDetected(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent, int32 SlotIndex, SVerticalBox::FSlot* Slot)
  752       {
  753       	FEdModeLandscape* LandscapeEdMode = GetEditorMode();
  754       
  755       	if (LandscapeEdMode != nullptr)
  756       	{
  757       		const TArray<FName>& TargetShownList = LandscapeEdMode->GetTargetShownList();
  758       
  759       		if (TargetShownList.IsValidIndex(SlotIndex))
  760       		{
  761       			const TArray<FName>* TargetDisplayOrderList = LandscapeEdMode->GetTargetDisplayOrderList();
  762       
  763       			if (TargetDisplayOrderList != nullptr)
  764       			{
  765 ***** 				int32 DisplayOrderLayerIndex = TargetDisplayOrderList->Find(LandscapeEdMode->UISettings->ShowUnusedLayers ? TargetShownList[SlotIndex + LandscapeEdMode->GetTargetLayerStartingIndex()] : TargetShownList[SlotIndex]);
  766       
  767       				if (TargetDisplayOrderList->IsValidIndex(DisplayOrderLayerIndex))
  768       				{
  769       					const TArray<TSharedRef<FLandscapeTargetListInfo>>& TargetList = LandscapeEdMode->GetTargetList();
  770       
  771       					for (const TSharedRef<FLandscapeTargetListInfo>& TargetInfo : TargetList)
Steps to Reproduce

repro steps currently unknown

Callstack
Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\Build\++UE4+Release-4.16+Compile\Sync\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 633] Array index out of bounds: 2 from an array of size 2

UE4Editor_LandscapeEditor!FLandscapeEditorCustomNodeBuilder_TargetLayers::HandleDragDetected() [landscapeeditordetailcustomization_targetlayers.cpp:766]
UE4Editor_LandscapeEditor!TMemberFunctionCaller<FLandscapeEditorCustomNodeBuilder_TargetLayers,FReply() [delegateinstanceinterface.h:165]
UE4Editor_LandscapeEditor!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<FLandscapeEditorCustomNodeBuilder_TargetLayers,FReply() [tuple.h:497]
UE4Editor_LandscapeEditor!TBaseSPMethodDelegateInstance<0,FLandscapeEditorCustomNodeBuilder_TargetLayers,0,FReply __cdecl() [delegateinstancesimpl.h:327]
UE4Editor_SlateCore!TBaseDelegate<FReply,FGeometry const & __ptr64,FPointerEvent const & __ptr64,int,SVerticalBox::FSlot * __ptr64>::Execute() [delegatesignatureimpl.inl:537]
UE4Editor_SlateCore!SDragAndDropVerticalBox::OnDragDetected() [sboxpanel.cpp:321]
UE4Editor_Slate!<lambda_3d2f0c0de9bfb1f26dd3fbfeef226ad5>::operator() [slateapplication.cpp:5169]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FDirectPolicy,FPointerEvent,<lambda_3d2f0c0de9bfb1f26dd3fbfeef226ad5> >() [slateapplication.cpp:239]
UE4Editor_Slate!FSlateApplication::RoutePointerMoveEvent() [slateapplication.cpp:5167]
UE4Editor_Slate!FSlateApplication::ProcessMouseMoveEvent() [slateapplication.cpp:5713]
UE4Editor_Slate!FSlateApplication::OnMouseMove() [slateapplication.cpp:5647]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1745]
UE4Editor_Core!FWindowsApplication::DeferMessage() [windowsapplication.cpp:2127]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:867]
UE4Editor_Core!FWindowsApplication::AppWndProc() [windowsapplication.cpp:714]
user32!UserCallWinProcCheckWow()
user32!DispatchMessageWorker()
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [windowsplatformmisc.cpp:1009]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3058]
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!BaseThreadInitThunk()
ntdll!RtlUserThreadStart()

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Fixed
ComponentTools - Landscape
Affects Versions4.16
Target Fix4.16.2
Fix Commit3476019
CreatedMay 31, 2017
ResolvedJun 6, 2017
UpdatedApr 27, 2018