How to use the USDZ file dowloading from USD COMPOSER as ground in ISAAC SIM

Omniverse Isaac Sim
1

Isaac Sim Version

4.2.0

Operating System

Ubuntu 22.04

GPU Information

  • Model:
  • Driver Version:

Topic Description

Detailed Description

Steps to Reproduce

  1. I downloaded Moccasin_Run_Golf_Course.usdz in USD composer, and saved as USD file.
  2. I open the USD file in Isaac Sim, add Jetbot, Ground plane and Physics Scene are also created.
  3. When I run the simulation, Jetbot fall down as following
    图片
    图片890×536 44.3 KB

I must missed some configurations, could anyone give me some suggestions?
Thanks!