Language command does not take any effect

Hi. Thanks for release the demo.
I just tried out the default example, but change the language command to see if the model can actually understand the prompt.
Here are what I tried:
- Default command: "Put white ball on white 3D printed base" -> work.
- Command 1: "Move white ball to the right, far away 3D printed base" -> output almost the same with default command
- Command 2: "Move white ball to the right corner of the brown sheet" -> almost stay at the same place.

I attach the results corresponding to the 3 commands above.
https://github.com/user-attachments/assets/b7323bf2-93aa-4954-a54d-15790d1c15df
https://github.com/user-attachments/assets/6fd245f7-2294-4407-9553-fdb0db4feec7
https://github.com/user-attachments/assets/7f6543e0-8e5d-4e48-9c12-1ae6aaa4ba8c

I hope I am wrong, but I feel the model just memorizes the scene, rather than taking condition on the prompt.