Crash on loading level with USD

Unreal 5.3
Created level with loaded USD. Works
Copied project to external drive.
Reopened project and tried opening same level.

Crash!!
Error
Objects have the same fully qualified name but different paths.

Tried deleting Derived Data Cache. No difference.

Submitted bug report.

I assume at most there might be a warning message without crashing.

Script Stack (0 frames) :

[2023.09.04-22.41.36:147][688]LogWindows: Error: appError called: Fatal error: [File:D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp] [Line: 3309]
Objects have the same fully qualified name but different paths.
New Object: UsdMaterialAssetUserData /Game/Cache.Cache:Sandstone_1.USDAssetUserData
Existing Object: UsdAssetUserData /Game/Cache.Cache:Sandstone_1.USDAssetUserData