I started using Photon Networking for Unity and I ran into a problem. I want to add to the CustomProperties in the player and then I want to debug the result. However the debug prints "Null". I do this after the room is created.
The funny thing is in the OnPhotonPlayerPropertiesChanged() it does print "changed" and only does that when I execute SetPlayerPosition(). 
But if I then check for the key inside the customproperties is doesn't contain it so it does not print "10"?
    void Awake()
    {
        SetPlayerPosition();
    }
    public override void OnPhotonPlayerPropertiesChanged(object[] playerAndUpdatedProps)
    {
        Debug.Log("changed");
        if (PhotonNetwork.player.CustomProperties.ContainsKey("1"))
        {
            Debug.Log("it works");
        }
    }
    void SetPlayerPosition()
    {
        ExitGames.Client.Photon.Hashtable xyzPos = new ExitGames.Client.Photon.Hashtable();
        xyzPos.Add(1, "10");
        xyzPos.Add(2, "5");
        xyzPos.Add(3, "10");
        PhotonNetwork.player.SetCustomProperties(xyzPos);
        // PhotonNetwork.player.SetCustomProperties(xyzPos, null, true); doesnt work either
    }
				
                        
Actually the awnser is that the keys need to be strings!