Cannot create multiplayer match, please help?

I don't know if the multiplayer is not working or if it is simply not spawning the player prefab in. Note: This all worked fine before 5.4beta, all I changed was the Creatematch methods inputs.

Spoiler: Message in Log

MatchMakingClient Create :https://mm.unet.unity3d.com/json/reply/CreateMatchRequest
UnityEngine.Networking.Match.NetworkMatch:CreateMatch(String, UInt32, Boolean, String, String, String, Int32, Int32, DataResponseDelegate`1)
CustomNetworkHUD:ClickedHostIP() (at Assets/Resources/Scripts/CustomNetworkHUD.cs:64)
UnityEngine.EventSystems.EventSystem:Update()

Code that is called

Code (CSharp):

1. public void ClickedHostIP() {
2.         string matchName = matchNameInput.text;
3.         if(!string.IsNullOrEmpty(matchName)){
4.             NM.matchMaker.CreateMatch(matchName, NM.matchSize, true, "", "", "", 0, 0, NM.OnMatchCreate);
5.             mmhud.enabled = false;
6.             matchList.enabled = false;
7.         }
8.     }

 

I have just fix this problem for me. I downloaded an other beta version of Unity and play my project on it (and the multiplayer work). After that, i can come back to my old version of Unity Beta.
I guess it's a problem with Unity Services and launch project on an other Unity update (and fix) the link with Unity Multiplayer Service.

 

which beta version did you get?

 

Oh I get it now. You are saying that the current beta versions cannot connect to the Unity Services, and we need to wait until they fix it.