Document Library tab: Cannot upload or drag&drop files
- create a new or use an existing team.
- add the "document library" app for any sharepoint library
- in the teams client (web or desktop) drag&drop a file into this library.
- teams gives an error: failed to upload file
- the file can be seen in sharepoint but IS CORRUPT AND CANNOT BE OPENED
the same issue happens if you click the "upload" button to try upload a file to the sharepoint library.
I have reproduced this in 3 tenants now, with more than 5 users, this is a bug.
the result is corrupt files, which is of course bad.