Hi @Kym Craig ,
Do you have any operations before this issue occurred?
Does anyone else have the same issue in your organization?
To exclude the client issue, we firstly recommend you login to Teams web client to see if this issue can be reproduced.
Then, please try to clean Teams client cache file. You could refer to the following ways:
*Fully exit the Microsoft Teams desktop client. To do this, either right click Teams from the Icon Tray and select ‘Quit’, or run Task Manager and fully kill the process.
*Go to File Explorer, and type in %appdata%\Microsoft\teams.
*Once in the directory, you’ll see a few of the following folders:
• From within ‘Application Cache’, go to Cache and delete any of the files in the Cache location. : %appdata%\Microsoft\teams\application cache\cache
• From within ‘Blob_storage’, delete any files that are located in here if any : %appdata%\Microsoft\teams\blob_storage
• From within ‘Cache’, delete all files.%appdata%\Microsoft\teams\Cache
• From within ‘databases’, delete all files.: %appdata%\Microsoft\teams\databases
• From within ‘GPUCache’, delete all files.: %appdata%\Microsoft\teams\GPUcache
• From within ‘IndexedDB’, delete the .db file : %appdata%\Microsoft\teams\IndexedDB
• From within ‘Local Storage’, delete all files.: %appdata%\Microsoft\teams\Local Storage
• Lastly, from within ‘tmp’, delete any file. : %appdata%\Microsoft\teams\tmp
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