Could you please test on a clean PC in your organization's domain to check whether this issue could be reproduced?
I also suggest you disabled "Silently move Windows known folders to OneDrive" policy for a test, as there is a number of errors can prevent this setting from taking effect, such as:
- A file exceeds the maximum path length
- The known folders aren't in the default locations
- Folder protection is unavailable
- Known folders are prohibited from being redirected
More information, please refer to "Silently move Windows known folders to OneDrive"