Does the Teams web client have the same problem?
Based on your description, this seems to be caused by a caching issue. Here are a few things to try to troubleshoot this issue:
- Completely exit Teams and clear the Teams login credentials.
- Check whether your hardware equipment meets the requirements.
- Clean up the Teams cache.
- Change another login device to check if there is the same problem.
If none of the above works, please reinstall the Teams client.
Hope this helps! Moreover, if the above is not your scenario or I have misunderstood anything, please correct me and provide us with detailed information about the issue including the screenshot so that we can better understand to further assist you.
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