Multiple players with solo session issue

Several players are complaining that they are in “solo session”.

This issue starts to occur with more than 800 players connected to the server.

99% of this problem occurs as soon as the player enters the server, he already enters this solo session, in which he can do everything but see the other players.

Players who are in this solo session can use chat, commands or even participate in game modes, but cannot view/see other players connected to the same routing bucket.

This same issue has also occurred with a player who was logged in and playing normally, was moved to this solo session while playing.