Over the 24 player limit.

[Kiko]

Recently with some servers when donors or ops join their will be 25/24 players which causes them to go to a iron color district thirteen at the nether house neaer the lobby with chests. (Happened to me even though I'm not donor)

 

[ChadTheDJ]

Lol, we see that as well. Always trippy seeing 25/24 players on a server.

 

[Koala]

Yeah, it's kind of common.