Microsoft Teams goes to white screen when anyone joins the meeting

Early this year after an update, my Teams app became unusable.  I have a MacBook Air.  When logging into a meeting everything seems fine until you actually join the meeting.  At that point you get a flash of faces and then the screen goes white.   I have removed and reinstalled Teams and checked  with different cameras (computer camera and my logitech camera.  Issue is same no matter what camera is in use.  nI am at a loss.  Help!