Hi 3265244458，

Thanks for your Feedback, 

To further clarify the issue, could you please record a video showing the complete steps you take when the problem occurs?
Additionally, could you provide the FBX you used during the process so that I can try to reproduce the issue under the same conditions

If the file size is larger than 10MB, you can use cloud services such as Google Drive, Dropbox or OneDrive to make the files available to us and put the link in your comment. You can use Private Comment if you want to keep it private.

JoePan
Reallusion