Hi, it looks like you are using the UE4 connector to import the assets to Nucleus. Can you please try loading the usd file in the Create App to see if you get the same issue. Thanks!
it’s right when opening by omniverse creator
If you launch Isaac Sim from the command line, I’d watch the material warnings from the command line window. Red means missing materials.
You can test exporting to USD from the UE4 connector on Windows, open Create on Windows and see if it can load that without the red missing materials before opening it in Isaac Sim on Linux.
Thanks HaiLocLu, I will try to it