Welcome to Microsoft Q&A forum.
Based on your description, it seems you are experiencing an issue when using the Move To function in your SharePoint site. To help us investigate this more effectively, please provide the following information:
- How many users in your organization are affected by this issue?
- Do other users with edit rights or full control permissions experience the same behavior?
- Did this functionality work before, and when did you first notice the problem?
- Please try using a private/incognito browser window and, if possible, another device such as a mobile phone.
- Please check whether you can move files to another library or site instead of just subfolders within the same library.
Your update will be very helpful to narrow down the issue. I look forward to hearing from you soon.
Thank you for your patience and understanding.