This is a trending crash in the 4.17 previews. Unfortunately users have not provided any descriptions of their actions when the crash occurred.
Source Context
557 TSharedRef<ITableRow> FDetailCategoryImpl::GenerateNodeWidget(const TSharedRef<STableViewBase>& OwnerTable, const FDetailColumnSizeData& ColumnSizeData, const TSharedRef<IPropertyUtilities>& PropertyUtilities, bool bAllowFavoriteSystem) 558 { 559 ***** return 560 SNew(SDetailCategoryTableRow, AsShared(), OwnerTable) 561 .InnerCategory(DetailLayoutBuilder.Pin()->IsLayoutForExternalRoot()) 562 .DisplayName(GetDisplayName()) 563 .HeaderContent(HeaderContentWidget); 564 } 565 566 567 void FDetailCategoryImpl::OnItemExpansionChanged(bool bIsExpanded, bool bShouldSaveState) 568 { 569 if (bRestoreExpansionState && bShouldSaveState) 570 { 571 // Save the collapsed state of this section 572 GConfig->SetBool(TEXT("DetailCategories"), *CategoryPathName, bIsExpanded, GEditorPerProjectIni); 573 }
repro steps currently unknown
Assertion failed: IsValid() [File:D:\Build\++UE4+Release-4.17+Compile\Sync\Engine\Source\Runtime\Core\Public\Templates/SharedPointer.h] [Line: 835] UE4Editor_PropertyEditor!FDetailCategoryImpl::GenerateNodeWidget() [detailcategorybuilderimpl.cpp:560] UE4Editor_PropertyEditor!SDetailsViewBase::OnGenerateRowForDetailTree() [sdetailsviewbase.cpp:42] UE4Editor_PropertyEditor!TMemberFunctionCaller<SDetailsView,TSharedRef<ITableRow,0>() [delegateinstanceinterface.h:165] UE4Editor_PropertyEditor!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SDetailsView,TSharedRef<ITableRow,0>() [tuple.h:497] UE4Editor_PropertyEditor!TBaseSPMethodDelegateInstance<0,SDetailsView,0,TSharedRef<ITableRow,0> __cdecl() [delegateinstancesimpl.h:327] UE4Editor_PropertyEditor!TBaseDelegate<TSharedRef<ITableRow,0>,TSharedRef<IDetailTreeNode,0>,TSharedRef<STableViewBase,0> const & __ptr64>::Execute() [delegatesignatureimpl.inl:537] UE4Editor_PropertyEditor!STreeView<TSharedRef<IDetailTreeNode,0> >::GenerateNewWidget() [streeview.h:555] UE4Editor_PropertyEditor!SListView<TSharedRef<IDetailTreeNode,0> >::ScrollBy() [slistview.h:1407] UE4Editor_Slate!STableViewBase::OnMouseWheel() [stableviewbase.cpp:488] UE4Editor_Slate!<lambda_817259bf08ee8cfaf3211512b4dcd760>::operator() [slateapplication.cpp:5794] UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FPointerEvent,<lambda_817259bf08ee8cfaf3211512b4dcd760> >() [slateapplication.cpp:232] UE4Editor_Slate!FSlateApplication::RouteMouseWheelOrGestureEvent() [slateapplication.cpp:5782] UE4Editor_Slate!FSlateApplication::ProcessMouseWheelOrGestureEvent() [slateapplication.cpp:5764] UE4Editor_Slate!FSlateApplication::OnMouseWheel() [slateapplication.cpp:5725] UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1762] UE4Editor_Core!FWindowsApplication::DeferMessage() [windowsapplication.cpp:2149] UE4Editor_Core!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:869] UE4Editor_Core!FWindowsApplication::AppWndProc() [windowsapplication.cpp:709] 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-48037 in the post.