Unable to add articulation to a custom biped robot

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Isaac Sim Version

4.2.0

Operating System

Ubuntu 22.04

GPU Information

  • Model: RTX 4090
  • Driver Version: 560.35.03
  • CUDA Version: 12.6

Topic Description

I am currently working with a custom-made robot called BALLU. After loading the robot in Isaac Sim using the URDF Importer extension, I am not able to add an Articulation root to it.

Screenshots

Please refer to this screenshot.


The Articulation option does not appear in the Property → + Add → Physics dropdown.

Additional Information

I was following this tutorial. Please find the robot description file (USD) attached.
ballu_without_articulation.zip (2.3 MB)

Please refer to URDF Importer unable to add Articulation Root.