Several different problems can often be fixed in Teams by clearing Teams' cache. 

They are:

• The Teams app not launching properly and instead showing a message that says, "We're sorry—we've run into an issue."
• Inability to log in to Teams.
• Missing or different information compared to what the web version of Teams displays.
• Inability to find users or teams.
• General slowness.
• Profile pictures missing or showing outdated images.
• Status not updating.
• Background images not showing.

To clear Teams' cache, follow the instructions below.

Clear the Teams Cache on Windows

1. Quit Microsoft Teams.
2. Hold the Windows key while pressing the R key.
3. Run will launch. In it, copy and paste the following:
   %localappdata%\packages\msteams_8wekyb3d8bbwe\LocalCache\Microsoft\MSTeams
4. Click OK.
5. Delete all files and folders in this directory.
6. Start the Microsoft Teams app.

Clear the Teams Cache on a Mac

1. Quit Microsoft Teams.
2. In the Finder, click on Applications then open the Utilities folder.
3. Double-click Terminal.
4. Copy and paste the following line of text into the box that appears and hit Return.
   rm -rf ~/Library/Group Containers/UBF8T346G9.com.microsoft.teams
5. Copy and paste the following line of text into the same box and hit Return.
   rm -rf ~/Library/Containers/com.microsoft.teams2
6. Quit Terminal.
7. Relaunch Microsoft Teams.