This is an intermittent crash occurring in the 4.17 release. Users have not provided any descriptions of their actions when the crashes occur.
Source Context
1444 LayerSettings.bValid = true; 1445 } 1446 } 1447 } 1448 else 1449 { 1450 Proxy->Modify(); 1451 Proxy->EditorLayerSettings.RemoveAt(i--); 1452 } 1453 } 1454 } 1455 } 1456 else // !Proxy 1457 { 1458 ***** Layers.Empty(); 1459 1460 if (!bInvalidate) 1461 { 1462 ForAllLandscapeProxies([this](ALandscapeProxy* EachProxy) 1463 { 1464 if (!EachProxy->IsPendingKillPending()) 1465 { 1466 checkSlow(EachProxy->GetLandscapeInfo() == this); 1467 UpdateLayerInfoMap(EachProxy, false); 1468 } 1469 }); 1470 } 1471 }
repro steps currently unknown
Access violation - code c0000005 (first/second chance not available) UE4Editor_Landscape!ULandscapeInfo::UpdateLayerInfoMap() [landscape.cpp:1459] UE4Editor_Landscape!ALandscape::PostEditChangeProperty() [landscapeedit.cpp:3782] UE4Editor_CoreUObject!UObject::PostEditChangeChainProperty() [obj.cpp:436] UE4Editor_PropertyEditor!FPropertyNode::NotifyPostChange() [propertynode.cpp:2360] UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [propertyhandleimpl.cpp:558] UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [propertyhandleimpl.cpp:358] UE4Editor_PropertyEditor!FPropertyValueImpl::SendTextToObjectProperty() [propertyhandleimpl.cpp:314] UE4Editor_PropertyEditor!FPropertyHandleObject::SetValue() [propertyhandleimpl.cpp:3400] UE4Editor_PropertyEditor!SPropertyEditorAsset::SetValue() [spropertyeditorasset.cpp:646] UE4Editor_PropertyEditor!TBaseSPMethodDelegateInstance<0,SPropertyEditorAsset,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327] UE4Editor_PropertyEditor!TBaseSPMethodDelegateInstance<0,SPropertyEditorAsset,0,void __cdecl() [delegateinstancesimpl.h:434] UE4Editor_PropertyEditor!SPropertyMenuAssetPicker::OnAssetSelected() [spropertymenuassetpicker.cpp:249] UE4Editor_PropertyEditor!TBaseSPMethodDelegateInstance<0,SPropertyMenuAssetPicker,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327] UE4Editor_PropertyEditor!TBaseSPMethodDelegateInstance<0,SPropertyMenuAssetPicker,0,void __cdecl() [delegateinstancesimpl.h:434] UE4Editor_ContentBrowser!SAssetView::AssetSelectionChanged() [sassetview.cpp:3733] UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327] UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,void __cdecl() [delegateinstancesimpl.h:434] UE4Editor_ContentBrowser!TBaseDelegate<void,TSharedPtr<FAssetViewItem,0>,enum ESelectInfo::Type>::ExecuteIfBound() [delegatesignatureimpl.inl:624] UE4Editor_ContentBrowser!SListView<TSharedPtr<FAssetViewItem,0> >::Private_SignalSelectionChanged() [slistview.h:725] UE4Editor_ContentBrowser!STableRow<TSharedPtr<FAssetViewItem,0> >::OnMouseButtonUp() [stablerow.h:474] 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()
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-48724 in the post.