If the Files tab (now called Shared) in your Microsoft Teams is not displaying any files, it could be due to several reasons:
- Temporary Issues: Sometimes, this could be a temporary issue. It's advisable to wait for a while and then try accessing the Files tab again.
- Permissions: Even if permissions seem correct, it's worth double-checking the SharePoint access permissions for the team. Ensure that the SharePoint site associated with the team is accessible and that the permissions are properly configured.
- SharePoint Settings: The file sharing settings in SharePoint may not be configured correctly. Make sure that the sharing settings allow the necessary access for users in the team.
- Self-Diagnostics Tool: If the problem persists, consider running a self-diagnostics tool. Microsoft 365 admin users can access diagnostics within the tenant to identify issues that might prevent access to files in Teams.
If none of these solutions work, you may want to reach out to Microsoft Support or consult the Microsoft Community for further assistance.