One of Pixars example .usd files is crashing the editor when importing with 'USD Stage' (KitchenSet imports with no errors)
It is possible to import the file via content browser without crashing. (I only see one tiny building when importing this way)
Tested with 4.25 10303526 With different result - If I open the .usd and then 'Reload' the same file through 'USD Stage' it does not crash.
Without reloading - EXCEPTION_ACCESS_VIOLATION reading address 0xffffffff crash
Result: Crash with !EdgeArray[EdgeID].ConnectedPolygons.Contains(PolygonID) assert
Assertion failed: !EdgeArray[EdgeID].ConnectedPolygons.Contains(PolygonID) [Link Removed] [Line: 571]
UE4Editor_Core!AssertFailedImplV() [d:\build\++ue4\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:105]
UE4Editor_Core!FDebug::CheckVerifyFailedImpl() [d:\build\++ue4\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:455]
UE4Editor_MeshDescription!FMeshDescription::CreatePolygon_Internal() [d:\build\++ue4\sync\engine\source\runtime\meshdescription\private\meshdescription.cpp:571]
UE4Editor_MeshDescription!FMeshDescription::CreatePolygon() [d:\build\++ue4\sync\engine\source\runtime\meshdescription\public\meshdescription.h:584]
UE4Editor_USDUtilities!UsdToUnreal::ConvertGeomMesh() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdutilities\private\usdgeommeshconversion.cpp:322]
UE4Editor_USDStage!AUsdStageActor::LoadStaticMesh() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:249]
UE4Editor_USDStage!AUsdStageActor::LoadPrim() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:542]
UE4Editor_USDStage!AUsdStageActor::ExpandPrim() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:616]
UE4Editor_USDStage!AUsdStageActor::ExpandPrim() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:631]
UE4Editor_USDStage!AUsdStageActor::ExpandPrim() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:631]
UE4Editor_USDStage!AUsdStageActor::ExpandPrim() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:631]
UE4Editor_USDStage!AUsdStageActor::ExpandPrim() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:631]
UE4Editor_USDStage!AUsdStageActor::ExpandPrim() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:631]
UE4Editor_USDStage!AUsdStageActor::UpdatePrim() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:796]
UE4Editor_USDStage!AUsdStageActor::LoadUsdStage() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:1001]
UE4Editor_USDStage!AUsdStageActor::PostEditChangeProperty() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstage\private\usdstageactor.cpp:828]
UE4Editor_USDStageEditor!SUsdStage::OpenStage() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstageeditor\private\susdstage.cpp:517]
UE4Editor_USDStageEditor!SUsdStage::OnOpen() [d:\build\++ue4\sync\engine\plugins\importers\usdimporter\source\usdstageeditor\private\susdstage.cpp:363]
UE4Editor_USDStageEditor!TBaseSPMethodDelegateInstance<0,SUsdStage,0,void __cdecl(void)>::ExecuteIfSafe() [d:\build\++ue4\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:369]
UE4Editor_Slate!SMenuEntryBlock::OnClicked() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:1068]
UE4Editor_Slate!SMenuEntryBlock::OnMenuItemButtonClicked() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:1019]
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,0,FReply __cdecl(void)>::Execute() [d:\build\++ue4\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:293]
UE4Editor_Slate!SButton::ExecuteOnClick() [d:\build\++ue4\sync\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:385]
UE4Editor_Slate!SButton::OnMouseButtonUp() [d:\build\++ue4\sync\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:304]
UE4Editor_Slate!SMenuEntryButton::OnMouseButtonUp() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\multibox\smenuentryblock.cpp:386]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_6c1f6b862bcfb82ea6dcab28fbcc9463> >() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:372]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4612]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5135]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\build\++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5103]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1958]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2410]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1638]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:789]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [d:\build\++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:130]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launchengineloop.cpp:4397]
UE4Editor!GuardedMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\launch.cpp:173]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:134]
UE4Editor!WinMain() [d:\build\++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:263]
UE4Editor!__scrt_common_main_seh() [d:\agent\_work\2\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-84696 in the post.