Assets/Scripts/GameManager.cs

@@ -207,11 +207,12 @@ public void PlayerValidateNameAndServerRoom(string _name, string _code)
             else
             {
                 myOnlineRoom = realtimeDB.Child("rooms").Child(_code);
-                //subscribe to it
-                myOnlineRoom.ValueChanged += OnRoomUpdate;
                 //if room exists, join it
                 JoinRoom(() =>
                 {
+                    //subscribe to it
+                    myOnlineRoom.ValueChanged += OnRoomUpdate;
+
                     myRoom.currentState = (int)GameState.WaitingForOtherPlayersToJoin;
                     players.Add(currentPlayer);