While verifying a bug for 4.15 UE-39952 , I tried to repro in 4.14.2 and the editor crashed while attempting to import the attached FBX
In 4.15, the Editor does NOT crash a window pops up stating that it failed and to see details in the output log. In the output log, it reads:
FBXImport:Error: Error MultiMat_Sphere could not be created because all of its triangles are degenerate.
This is a Regression from 4.14.1 CL 3223369
Result: The editor crashes
Expected Result: The editor does not crash
UE4Editor_UnrealEd!TSet<TPair<unsigned int,FMeshSectionInfo>,TDefaultMapKeyFuncs<unsigned int,FMeshSectionInfo,0>,FDefaultSetAllocator>::operator=( set.h:244 UE4Editor_UnrealEd!UnFbx::FFbxImporter::ReorderMaterialToFbxOrder() fbxstaticmeshimport.cpp:1602 UE4Editor_UnrealEd!UFbxFactory::FactoryCreateBinary() fbxfactory.cpp:297 UE4Editor_UnrealEd!UFactory::FactoryCreateFile() factory.cpp:75 UE4Editor_UnrealEd!UFactory::ImportObject() factory.cpp:150 UE4Editor_AssetTools!FAssetTools::ImportAssetsInternal() assettools.cpp:1375 UE4Editor_AssetTools!FAssetTools::ImportAssets() assettools.cpp:628 UE4Editor_AssetTools!FAssetTools::ImportAssets() assettools.cpp:561 UE4Editor_ContentBrowser!SContentBrowser::ImportAsset() scontentbrowser.cpp:790 UE4Editor_ContentBrowser!SContentBrowser::HandleImportClicked() scontentbrowser.cpp:781 UE4Editor_ContentBrowser!TMemberFunctionCaller<SContentBrowser,FReply() delegateinstanceinterface.h:161 UE4Editor_ContentBrowser!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SContentBrowser,FReply() tuple.h:116 UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowser,0,FReply __cdecl() delegateinstancesimpl.h:318 UE4Editor_Slate!TBaseDelegate<FReply>::Execute() delegatesignatureimpl.inl:522 UE4Editor_Slate!SButton::OnMouseButtonUp() sbutton.cpp:275 UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() slateapplication.cpp:5010 UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() slateapplication.cpp:215 UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:4999 UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:5462 UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:5439 UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1652 UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:2071 UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:814 UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:678 user32!<Unknown> user32!<Unknown> UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:951 UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2811 UE4Editor!GuardedMain() launch.cpp:152 UE4Editor!GuardedMainWrapper() launchwindows.cpp:126 UE4Editor!WinMain() launchwindows.cpp:202 UE4Editor!__scrt_common_main_seh() exe_common.inl:264 kernel32!<Unknown> ntdll!<Unknown>
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