Microsoft Teams experienced a file-sharing outage overnight that disrupted collaboration for many users and forced the software biz to roll back a recent backend change.
The problem began during US business hours, with users reporting odd behavior. Attachments failed to upload, downloads stopped working, and collaboration for affected customers ground to a halt.
Microsoft swung into action and confirmed it was looking into the issue. A note, TM1055900, was posted in the Message Center as engineers investigated.
It took a few hours to identify the cause: readers will be shocked to learn that it was a modification to the backend which led to the outage. Reverting the change fixed it.