What are the precautions when you use Qing Tong motion capture to record animations?

What are the precautions to take when you need to use motion capture cameras at the exhibition?

The created character's skeleton has a collapsed shoulder.

The created character's arm cannot be fully extended.

Pop-up window displays "License has expired"

After the camera was properly installed, it was not recognized in the software's camera list.

The camera list shows normally, but there is no camera image in the "Camera View" section.

The camera list shows normally, but there is no camera image in the "Camera View" section.

Unable to perform coordinate system calibration