Movement between Zoom breakout rooms stops working

[Jaques]

This issue occurred yesterday and again today.  We were running workshops in breakout rooms and after about 9 hours the participants couldn't move between the breakout rooms anymore.  Not even the host could move anyone.  The host was also not able to close the breakout rooms.  We had to restart the Zoom meeting.  This is very disruptive.  Please assist with a solution as we have the same concept tomorrow and again next week.  

[Kenji-K]

We experienced the exact same thing this week. Had to restart the zoom meeting after about eight hours to restore movement into and out of breakout rooms. 

[jim-hanson]

this happened to us this weekend. we had about 110-120 participants. 50 breakout rooms. both saturday and sunday, the zoom meeting would just stop allowing people to go into breakout rooms and in some cases, blocked people from getting into zoom (they got error messages, put into some kind of waiting area/space even though we did not have a waiting room).  we had to reboot zoom about every 1 hour.

[Mook]

Same issue. Not only annoying, but VERY bad for business - especially as I am trying to get people convinced that meetings by Zoom are preferable to in person.