Isaacsim Crash when loading URDF file

Problem Description

Hi, I’m following the tutorials to import turtlebot3 burger URDF file to my stage. However, after I clicking the “import” button, my isaacsim just freezes and I receive a system popup window stating that “Isaacsim is not responding”. I have tried choose “wait for” for 5 minutes and still no response at all.

My System Configurations:

CPU: AMD Ryzen9 9900X
RAM: DDR5 32G*2 DDR5 6600MHz C32
GPU: RTX4080 Super
OS: ubuntu 22.04
Isaacsim version: 4.50
ROS2 version: humble

Thanks in advance for your assistance

Update:

The importer can generate some .usd files, but their size are all fixed. (492 bytes)
turtlebot3_burger.zip (2.0 KB)