Microsoft 文件托管和同步服务。
Dear CatOrange
Good day! Thank you for posting to Microsoft Community. We are happy to help you
Since this phenomenon occurs in a specific account, it is possible that there is a problem with the data transfer between the account and the server side, we kindly recommended you can raise a service request in Microsoft 365 admin center, which the support there has the related permission and resource to help you check from the backend.
Thanks for your cooperation.
Sincerely,
Tin | Microsoft Community Moderator