Description

This is a common crash coming out of the 4.17 release.

User Descriptions

  • trying to delete landscape related stuff

A similar callstack was seen in an older issue, UE-34890.

Source Context

1872       	// in case this Info object is not initialized yet
 1873       	// initialized it with properties from passed actor
 1874       	if (LandscapeGuid.IsValid() == false ||
 1875       		(GetLandscapeProxy() == nullptr && ensure(LandscapeGuid == Proxy->GetLandscapeGuid())))
 1876       	{
 1877       		LandscapeGuid = Proxy->GetLandscapeGuid();
 1878       		ComponentSizeQuads = Proxy->ComponentSizeQuads;
 1879       		ComponentNumSubsections = Proxy->NumSubsections;
 1880       		SubsectionSizeQuads = Proxy->SubsectionSizeQuads;
 1881 ***** 		DrawScale = Proxy->GetRootComponent()->RelativeScale3D;
 1882       	}
Steps to Reproduce

repro steps currently unknown

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

UE4Editor_Landscape!ULandscapeInfo::RegisterActor() [landscape.cpp:1882]
UE4Editor_Landscape!ALandscapeProxy::CreateLandscapeInfo() [landscape.cpp:772]
UE4Editor_Landscape!ALandscapeProxy::PostRegisterAllComponents() [landscape.cpp:1065]
UE4Editor_Engine!AActor::IncrementalRegisterComponents() [actor.cpp:4136]
UE4Editor_Engine!AActor::RegisterAllComponents() [actor.cpp:4022]
UE4Editor_Engine!AActor::PostEditChangeProperty() [actoreditor.cpp:130]
UE4Editor_Landscape!ALandscapeProxy::PostEditChangeProperty() [landscapeedit.cpp:3718]
UE4Editor_Landscape!ALandscape::PostEditChangeProperty() [landscapeedit.cpp:3854]
UE4Editor_UnrealEd!ObjectTools::ForceReplaceReferences() [objecttools.cpp:791]
UE4Editor_UnrealEd!ObjectTools::ForceDeleteObjects() [objecttools.cpp:2304]
UE4Editor_UnrealEd!FAssetDeleteModel::DoForceDelete() [assetdeletemodel.cpp:316]
UE4Editor_UnrealEd!SDeleteAssetsDialog::ForceDelete() [sdeleteassetsdialog.cpp:717]
UE4Editor_UnrealEd!TMemberFunctionCaller<SDeleteAssetsDialog,FReply() [delegateinstanceinterface.h:165]
UE4Editor_UnrealEd!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SDeleteAssetsDialog,FReply() [tuple.h:497]
UE4Editor_UnrealEd!TBaseSPMethodDelegateInstance<0,SDeleteAssetsDialog,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!FWindowsApplication::PumpMessages() [windowsapplication.cpp:2173]
UE4Editor_Slate!FSlateApplication::TickPlatform() [slateapplication.cpp:1613]
UE4Editor_Slate!FSlateApplication::AddModalWindow() [slateapplication.cpp:2094]
UE4Editor_UnrealEd!UEditorEngine::EditorAddModalWindow() [editorengine.cpp:3845]
UE4Editor_UnrealEd!ObjectTools::DeleteObjects() [objecttools.cpp:1836]
UE4Editor_UnrealEd!ObjectTools::DeleteAssets() [objecttools.cpp:1743]
UE4Editor_ContentBrowser!FAssetContextMenu::ExecuteDelete() [assetcontextmenu.cpp:1816]
UE4Editor_ContentBrowser!SContentBrowser::HandleDeleteCommandExecute() [scontentbrowser.cpp:2131]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,void __cdecl() [delegateinstancesimpl.h:434]
UE4Editor_Slate!FUICommandList::ConditionalProcessCommandBindings() [uicommandlist.cpp:216]
UE4Editor_Slate!FUICommandList::ProcessCommandBindings() [uicommandlist.cpp:160]
UE4Editor_ContentBrowser!SContentBrowser::OnKeyDown() [scontentbrowser.cpp:1068]
UE4Editor_Slate!<lambda_2afcd964c763e269e2d1a63f3a72f846>::operator() [slateapplication.cpp:4771]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FKeyEvent,<lambda_2afcd964c763e269e2d1a63f3a72f846> >() [slateapplication.cpp:232]
UE4Editor_Slate!FEventRouter::RouteAlongFocusPath<FEventRouter::FBubblePolicy,<lambda_2afcd964c763e269e2d1a63f3a72f846>,FKeyEvent>() [slateapplication.cpp:214]
UE4Editor_Slate!FSlateApplication::ProcessKeyDownEvent() [slateapplication.cpp:4769]
UE4Editor_Slate!FSlateApplication::OnKeyDown() [slateapplication.cpp:4681]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1553]
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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Unresolved
ComponentTools - Landscape
Affects Versions4.174.184.194.204.21
Target Fix4.22
CreatedAug 28, 2017
ResolvedAug 5, 2018
UpdatedNov 12, 2018