5 user limit when using the public Jitsi Meet server

[LordofDice]

In our last session only 5 out of 6 players could use the audio / video chat. We relogged and restarted the server several times and always the last one that came in could hear and see all others but was not able to speak or send video (but he could see himself in the video on his own PC). The User with the problem was always the last one, so we're sure it wasn't a local audio / webcam problem. Is there a new limit of 5 users? In the past we had no problems with 6 users.