This is not a regression.
Tested in:
//UE4/Release-4.27 CL18319896 Binary
//UE5/Release-5.0-EarlyAccess CL16682836 Binary
//UE5/Release-5.0 CL18407655 Personal P4
When opening a static mesh without a valid viewport the editor crashes.
Expected Results:
Static Mesh Editor reopens without the viewport.
Actual Results:
Editor crashes.
UnrealEditor-StaticMeshEditor!FStaticMeshEditor::ExtendToolBar() [StaticMeshEditor.cpp:911] UnrealEditor-StaticMeshEditor!FStaticMeshEditor::InitStaticMeshEditor(EToolkitMode::Type,TSharedPtr<IToolkitHost,0> const &,UStaticMesh *) [StaticMeshEditor.cpp:266] UnrealEditor-StaticMeshEditor!FStaticMeshEditorModule::CreateStaticMeshEditor(EToolkitMode::Type,TSharedPtr<IToolkitHost,0> const &,UStaticMesh *) [StaticMeshEditorModule.cpp:51] UnrealEditor-AssetTools!FAssetTypeActions_StaticMesh::OpenAssetEditor(TArray<UObject *,TSizedDefaultAllocator<32> > const &,TSharedPtr<IToolkitHost,0>) [AssetTypeActions_StaticMesh.cpp:84] UnrealEditor-UnrealEd!7ffca11e0000 + ced2da UnrealEditor-UnrealEd!7ffca11e0000 + cedbb0 UnrealEditor-UnrealEd!7ffca11e0000 + ced95a UnrealEditor-ContentBrowserAssetDataSource!ContentBrowserAssetData::EditOrPreviewAssetFileItems(TArrayView<TSharedRef<FContentBrowserAssetFileItemDataPayload const ,0> const ,int>,bool) [ContentBrowserAssetDataCore.cpp:287] UnrealEditor-ContentBrowserAssetDataSource!ContentBrowserAssetData::EditOrPreviewItems(IAssetTools *,UContentBrowserDataSource const *,TArrayView<FContentBrowserItemData const ,int>,bool) [ContentBrowserAssetDataCore.cpp:307] UnrealEditor-ContentBrowserAssetDataSource!UContentBrowserAssetDataSource::BulkEditItems(TArrayView<FContentBrowserItemData const ,int>) [ContentBrowserAssetDataSource.cpp:1046] UnrealEditor-ContentBrowser!SContentBrowser::OnItemsActivated(TArrayView<FContentBrowserItem const ,int>,EAssetTypeActivationMethod::Type) [SContentBrowser.cpp:2454] UnrealEditor-ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,void ,FDefaultDelegateUserPolicy>::Execute(TArrayView<FContentBrowserItem const ,int>,EAssetTypeActivationMethod::Type) [DelegateInstancesImpl.h:290] UnrealEditor-ContentBrowser!SAssetView::OnListMouseButtonDoubleClick(TSharedPtr<FAssetViewItem,0>) [SAssetView.cpp:3560] UnrealEditor-ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,void ,FDefaultDelegateUserPolicy>::ExecuteIfSafe(TSharedPtr<FAssetViewItem,0>) [DelegateInstancesImpl.h:307] UnrealEditor-ContentBrowser!TDelegate<void ,FDefaultDelegateUserPolicy>::ExecuteIfBound<void,0>(TSharedPtr<FAssetViewItem,0>) [DelegateSignatureImpl.inl:599] UnrealEditor-ContentBrowser!SListView<TSharedPtr<FAssetViewItem,0> >::Private_OnItemDoubleClicked(TSharedPtr<FAssetViewItem,0>) [SListView.h:1080] UnrealEditor-ContentBrowser!STableRow<TSharedPtr<FAssetViewItem,0> >::OnMouseButtonDoubleClick(FGeometry const &,FPointerEvent const &) [STableRow.h:461] UnrealEditor-Slate!static class FReply FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FPointerEvent,<lambda_38816398cd24931ec4d21c3bfc532a3b> >(class FSlateApplication *, class FEventRouter::FBubblePolicy, struct FPointerEvent, const class FSlateApplication::RoutePointerDoubleClickEvent::__l2::<lambda_38816398cd24931ec4d21c3bfc532a3b> & const, ESlateDebuggingInputEvent) [SlateApplication.cpp:380] UnrealEditor-Slate!FSlateApplication::RoutePointerDoubleClickEvent(FWidgetPath const &,FPointerEvent const &) [SlateApplication.cpp:5302] UnrealEditor-Slate!FSlateApplication::ProcessMouseButtonDoubleClickEvent(TSharedPtr<FGenericWindow,0> const &,FPointerEvent const &) [SlateApplication.cpp:5289] UnrealEditor-Slate!FSlateApplication::OnMouseDoubleClick(TSharedPtr<FGenericWindow,0> const &,EMouseButtons::Type,FVector2D) [SlateApplication.cpp:5252] UnrealEditor-ApplicationCore!FWindowsApplication::ProcessDeferredMessage(FDeferredWindowsMessage const &) [WindowsApplication.cpp:2200] UnrealEditor-ApplicationCore!FWindowsApplication::DeferMessage(TSharedPtr<FWindowsWindow,0> &,HWND__ *,unsigned int,unsigned __int64,__int64,int,int,unsigned int) [WindowsApplication.cpp:2689] UnrealEditor-ApplicationCore!FWindowsApplication::ProcessMessage(HWND__ *,unsigned int,unsigned __int64,__int64) [WindowsApplication.cpp:1872] UnrealEditor-ApplicationCore!FWindowsApplication::AppWndProc(HWND__ *,unsigned int,unsigned __int64,__int64) [WindowsApplication.cpp:896] USER32!7ffd11690000 + 163ed USER32!7ffd11690000 + 15de2 UnrealEditor-ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages(bool) [WindowsPlatformApplicationMisc.cpp:131] UnrealEditor!7ff6938b0000 + 76cb UnrealEditor!7ff6938b0000 + 20b2c UnrealEditor!7ff6938b0000 + 20c0a UnrealEditor!7ff6938b0000 + 3573d UnrealEditor!7ff6938b0000 + 386ba KERNEL32!7ffd11e00000 + 17bd4 ntdll!7ffd12420000 + 6ced1
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