I had an issue reported to me recently to do with a large meeting, using several breakout rooms. Issue was reported to me after the meeting had ended.
The users had a meeting with 40+ attendees, and several breakout rooms setup beforehand. When the meeting started they reported that the breakout rooms vanished, and had to be recreated. No users were in rooms at the time they vanished.
Having not been there at the time I didnt get to see it myself. Is there some timeout that breakout rooms have? Has anyone seen issues with pre-configured breakout rooms vanishing?