void LobbyLeft(GalaxyID lobbyID)
 {
     matchmaking.CurrentLobbyID = null;
     matchmaking.LobbyOwnerID   = null;
     matchmaking.leftOnMyOwn    = false;
     GalaxyManager.Instance.ShutdownNetworking();
     matchmaking.ShutdownLobbyChat();
     matchmaking.ShutdownLobbyManagementInGame();
     Debug.Log("Lobby " + lobbyID + " left");
 }