Hi there. I just helped you with this exact issue in the other thread. Remember? I just got your files working in USD composer. These files also should work finding Isaac Sim. Animation from SketchFab moving in place - #7 by Richard3D
First of all, you should be using the very latest versions of both Isaac Sim and USD composer
For Isaac Sim, it should be 5.0
For USD composer, it should be 107.3
Remember, these versions are not available on launcher. Launcher is now discontinued. Please do not use it. Do not use 4.2 or 2023.2.5.
Please go to GitHub - NVIDIA-Omniverse/kit-app-template: Omniverse Kit App Template For the latest, USD composer
Please go to GitHub - isaac-sim/IsaacSim: NVIDIA Isaac Sim™ is an open-source application on NVIDIA Omniverse for developing, simulating, and testing AI-driven robots in realistic virtual environments. for Issac Sim