Remove each of the Freehand projects from the team by clicking on the dropdown arrow on the project name and selecting Remove.
If not, performing the steps below should help resolve this as well: In the meantime, as a workaround, if you switch your default browser to something other than Google Chrome or Microsoft Edge, then completely quit and restart the MS Teams application, this should help. That being said, I will open a ticket on your behalf with our Support team so that they can keep you in the loop on this issue. It appears as if what you're experiencing may, in fact, be related, a known issue that our Engineering team is continuing to investigate.
Thanks for taking the time to provide those details!