Suddenly PhotonNetwork.PlayerList is not updated (reduced) when a player left a room, I get the playerLeftRoom callback, is this a network issue? I didn't say anything listed in the photon status page
If you set a PlayerTTL in the RoomOptions, a leaving player will become inactive but still is in the list of players. This makes sure the player can still rejoin and others know this player belongs into the room.
The event and callback is fired in those cases to let others know.
@Tobias Thanks that explains it, confirmed PlayerTTL was set