How to add a USD file to multiple scene?

I am using isaac omniverse gym and trying to add a unique USD file to the world that has multiple environments (let us say 64).

I am using the following method:

As shown in the figure, I am trying to import multiple logbots and logs into the environment. However, only logbots works here which is also a USD file.

I am very confused, there seems to be no mistake for the log USD file.

image

I would like to see if anyone has any clues for that? Or is there a better way to import the USD file?

Many thanks in advance for any help!

Yours sincerely,
Jianlin

Hi @jianlin_wang_lynn - Have you reviewed following docs?
https://docs.omniverse.nvidia.com/isaacsim/latest/isaac_gym_tutorials/tutorial_gym_cloner.html

https://docs.omniverse.nvidia.com/isaacsim/latest/isaac_gym_tutorials/tutorial_gym_instanceable_assets.html