When importing two characters into 3ds Max using the Auto Rig Setup plugin, I encountered a facial rig problem. The rig functions correctly for the first character, but for the second one, the mouth doesn't open properly; instead, it compresses inward, resulting in an unnatural appearance. I’ve tried using different characters, naming conventions, and file directories, but the issue persists. It appears that the Auto Rig Setup plugin is not handling multiple characters correctly.

Troubleshooting Steps Taken:

- Attempted different character models.
- Changed naming conventions to avoid conflicts.
- Used separate folders for each character.

Despite these efforts, the problem remains consistent. It seems the plugin may not fully support multiple character rigs in the same scene.