I installed Jitsi-meet on my ubuntu 18.04 machine back in April. Didn’t configure anything fancy, out of the box it was just what I needed.
Then after a few weeks in two frequently used rooms some users, who had a disconnect, just didn’t vanish. So I had two rooms on the server, where there were just some dead users already there all the time.
I tried service jicofo/jitsi-videobridge restart, but that didn’t help.
Then there was an update of jitsi-meet and they were gone (I also migrated to nginx at that time). Yay, I thaught, bug fixed. \o/
But two weeks ago it started again. (also tried service nginx restart this time)