Additional file-related features and issues within Microsoft Teams for business
Hi Sébastien
My name is Daniel. I will be more than happy to assist you.
I'm not sure if this is an intermittent issue or a bug, I also experience the same issue both on the web app or desktop app as you can see in the screenshot below.
I do believe this issue needs to be investigated furthermore by the MS Team engineering team so they can determine the best next steps for this particular issue. I highly suggest you report this issue, If this is a bug normally they will release fixes but as a community advisor, I can't guarantee that for you since I don't work for Microsoft.
Follow these steps: Select Help > select report a problem
Disclaimer:
This is a peer-to-peer support forum. I'm Non-Microsoft Staff, I don't work for Microsoft. Mostly everyone here are users, helping other users.
Kind Regards