Breakout rooms not fully working

[AL71]

I held a meeting recently when I divided participants into approximately 9 rooms of 9 people. They were automatically sent to the rooms (ie participants did not need to click on join room) but two of the rooms just didn't work. People were not put in the rooms. I could send some of them to rooms that were working and some of them reappeard in the main room but others were just left hanging. Why did this happen and how can i prevent it in future?

[LuigiTraining]

A me viene da pensare che sia una questione di bug. Quindi ti chiedo: è successo solo una volta? Accade spesso? Quando mi capita, io chiudo e riapro le stanze.

Translation by Google Translate:

I think it's a bug issue. So I ask you: did it only happen once? Does it happen often? When it happens to me, I close and reopen the rooms.