Why OnJoinedRoom() Not Woking?

public void Connect()
    {
        Debug.Log("LauncherLog: Connect Function started.");
        isConnecting = true;
        GameObject.Find("MenuManager").GetComponent<MenuManager>().progressLabel.SetActive(true);
        GameObject.Find("MenuManager").GetComponent<MenuManager>().controlPanel.SetActive(false);
        
        if (PhotonNetwork.IsConnected)
        {
            Debug.Log("LauncherLog: Is connected to photon and will try to join random room.");
            PhotonNetwork.JoinRandomRoom();
        }
        else
        {
            Debug.Log("LauncherLog: Not Connected to Photon, reconnecting...");
            PhotonNetwork.GameVersion = gameVersion;
            PhotonNetwork.ConnectUsingSettings();
        }
    }

public override void OnJoinRandomFailed(short returnCode, string message)
    {
        Debug.Log("LauncherLog: Player join random room failed with error " + message);
        PhotonNetwork.CreateRoom(null, new RoomOptions { MaxPlayers = maxPlayersPerRoom});
    }

public override void OnJoinedRoom()
    {
        Debug.Log("LauncherLog: OnjoinedRoom Function started.");
        StartCoroutine(MoveToGameScene(2));
    }

private IEnumerator MoveToGameScene(int SceneIndex)
    {
        Debug.Log("LauncherLog: MoveToGameScene started.");
        PhotonNetwork.IsMessageQueueRunning = false;

        if (PhotonNetwork.IsMasterClient)
        {
            Debug.Log("LauncherLog: MoveToGameScene is master client!, will close room");
            PhotonNetwork.CurrentRoom.IsOpen = false; // I make it true, in the loaded scene.
            Debug.Log("Room closed");
        }

        LoadingScreenPro.LoadScene(SceneIndex);
        yield return null;
    }