DOF View errors when import cobotta_pro_900.urdf

Hello! when i import cobotta_pro_900.urdf as 5.6. Adding a New Manipulator — Omniverse IsaacSim latest documentation, i find robot’s positions and velocitys are all Nan for each joint.And when i press play button, error message “illegal broadphaseupdatedata” came out. I don’t know why.

@1062033103 i am just another user, but there was a similar thread recently on a different bot, not sure if it could provide some insight:

can you also try the latest Isaac Sim version, 2023.1.0 hotfix.1 to see if the same issue persists?

Thanks for answering. I will try it later.