A Microsoft file hosting and synchronization service.
Hi Kieran Hughes,
Greetings. Thank you for posting the thread to our community.
I understand your concern, it seems one of your users cannot properly sync Teams files to OneDrive sync folder locally. For the situation you’ve encountered, I do understand the inconvenience caused and feel very sorry about it.
Judging from the situation you’ve encountered, I’m afraid and sorry to say currently this issue hasn’t happened on my side and I couldn’t find related service incident either. In that case, I sincerely suggest you can try to Reset OneDrive: Reset OneDrive - Microsoft Support and check whether the issue persists or not.
If the issue persists after trying reset OneDrive, I’m afraid this is a temporarily server-side issue needs to be investigated from back end to find the cause. The Microsoft Support Team has higher permission to remotely assist you and collect background logs for the root cause. This is a more efficient way in handling this case for you.
If you are an admin, I recommend you get support by following steps from this link: Get support - Microsoft 365 admin | Microsoft Learn to raise a support ticket from admin center or calling the phone support to contact Microsoft Support: Customer service phone numbers - Microsoft Support.
If you are not an admin, you can contact your admin to contact Microsoft support. You can look for the way to find your admin through this link: How do I find my Microsoft 365 admin? - Microsoft Support.
Please accept my apologies for redirecting you to the related team support, as the moderators in this community have limited resources and permission to verify the backend information and to get the quick and better assistance, we requested for this.
Hope you having a nice day and wish you all the best as well! 😊
Sincerely,
Harry | Microsoft Community Moderator