This is a fairly common crash that occurs in the 4.17 and 4.18 releases. This callstack was originally being tracked under [Link Removed], but that had specific repro steps that were confirmed fixed in 4.18.0, while this callstack still continues. Users have not provided any descriptions of their actions when the crash occurred.
Source Context
598 const FSlateBrush* FAssetEditorToolkit::GetDefaultTabIcon() const 599 { 600 if (EditingObjects.Num() == 0) 601 { 602 return nullptr; 603 } 604 605 const FSlateBrush* IconBrush = nullptr; 606 607 for (auto ObjectIt = EditingObjects.CreateConstIterator(); ObjectIt; ++ObjectIt) 608 { 609 ***** const FSlateBrush* ThisAssetBrush = FSlateIconFinder::FindIconBrushForClass((*ObjectIt)->GetClass()); 610 611 if (!IconBrush) 612 { 613 IconBrush = ThisAssetBrush; 614 } 615 else if (IconBrush != ThisAssetBrush) 616 { 617 // Fallback icon 618 return FEditorStyle::GetBrush(TEXT("ClassIcon.Default")); 619 } 620 } 621 622 return IconBrush; 623 }
repro steps currently unknown
Access violation - code c0000005 (first/second chance not available) UE4Editor_UnrealEd!FAssetEditorToolkit::GetDefaultTabIcon() asseteditortoolkit.cpp:610 UE4Editor_UnrealEd!TBaseSPMethodDelegateInstance<1,FAssetEditorToolkit,0,FSlateBrush const * __ptr64 __cdecl() delegateinstancesimpl.h:327 UE4Editor_Slate!TAttribute<FSlateBrush const * __ptr64>::Get() attribute.h:137 UE4Editor_Slate!SDockTab::GetTabPadding() sdocktab.cpp:626 UE4Editor_Slate!TBaseSPMethodDelegateInstance<1,SDockTab,0,FMargin __cdecl() delegateinstancesimpl.h:327 UE4Editor_SlateCore!TAttribute<FMargin>::Get() attribute.h:137 UE4Editor_SlateCore!SOverlay::OnArrangeChildren() soverlay.cpp:33 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:28 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::SearchForWidgetRecursively<FWidgetMatcher>() widgetpath.inl:36 UE4Editor_SlateCore!FWidgetPath::GeneratePathToWidget<FWidgetMatcher>() widgetpath.h:125 UE4Editor_SlateCore!FWidgetPath::ExtendPathTo<FWidgetMatcher>() widgetpath.h:97 UE4Editor_SlateCore!FSlateWindowHelper::FindPathToWidget() slatewindowhelper.cpp:116 UE4Editor_SlateCore!FSlateWindowHelper::FindPathToWidget() slatewindowhelper.cpp:125 UE4Editor_Slate!FSlateApplication::GeneratePathToWidgetChecked() slateapplication.cpp:2941 UE4Editor_Slate!FSlateApplication::AddModalWindow() slateapplication.cpp:2026 UE4Editor_UnrealEd!UEditorEngine::EditorAddModalWindow() editorengine.cpp:3845 UE4Editor_UnrealEd!OpenMsgDlgInt() dialogs.cpp:302 UE4Editor_Core!FMessageDialog::Open() messagedialog.cpp:98 UE4Editor_UnrealEd!ObjectTools::DeleteSingleObject() objecttools.cpp:2008 UE4Editor_UnrealEd!ObjectTools::ForceDeleteObjects() objecttools.cpp:2328 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
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