Conversations involving multiple participants, allowing collaboration and information sharing in Teams
I was deleting the MSTeams folder from that location each morning as part of my routine, but now today that doesn't seem to fix the issue for the entire day. Thankfully I still have Teams Classic installed on my workstation, so going back to using Teams Classic has fixed this for me.
It's really dumb that I have to use a completely different version of the software to get around a visual bug.