Clear the Microsoft Teams Cache
From Help Wiki
Microsoft Teams desktop app may occasionally have problems accessing content. Similar to clearing your browser cache, clearing the Teams cache can clear up many issues without deleting your Teams data.
Windows - Clear the Teams Cache
- Fully quit Microsoft Teams and ensure it is no longer running in the toolbar at the bottom right of Windows
- Navigate to %appdata%/Microsoft/Teams in a File Window
- Select everything in the folder and Delete everything
- Open Teams and wait for it to download the required files
Macintosh - Clear Teams Cache
- Quit the Teams App completely
- Navigate to ~/Library/Application Support/Microsoft
- Right-click the Teams folder then select Move to Trash
- Navigate to Keychain Access
- Search for ‘Microsoft Teams’ and delete the entry.
- Open Teams and wait for it to download the required files