Hi Ray!
Does this issue persist all the time?
Does anyone else have the same issue in your organization?
What is the version of your Teams client?
In this case, we recommend you try to run the following command to remove cache folder, then test to see if it can be fixed.
rm -r ~/.config/Microsoft/Microsoft\ Teams\ -\ Insiders
Also, you can try to install Teams insider to see if this issue still persist.
https://packages.microsoft.com/repos/ms-teams/pool/main/t/teams-insiders/