On NetworkLobbyManager override, base.OnLobbyServerCreate[Lobby/Game]Player() return null. Is that normal ?

Hi,

I made a sample project illustrating my question.

This projet consists of the minimal network game managed by an overrided LobbyNetworkManager.

Here is the source code of my LobbyNetworkManager override :

 using UnityEngine;
 using UnityEngine.Networking;
 using System.Collections;
 
 public class TEST_NetworkLobbyManager : NetworkLobbyManager {
     public override GameObject OnLobbyServerCreateGamePlayer(NetworkConnection conn, short playerControllerId)
     {
         GameObject gamePlayer = base.OnLobbyServerCreateGamePlayer(conn, playerControllerId);
         if (gamePlayer == null)
         {
             Debug.Log("The gamePlayer instancied by base.OnLobbyServerCreateGamePlayer(conn, playerControllerId); is null");
         }
         return gamePlayer;
     }
 
     public override GameObject OnLobbyServerCreateLobbyPlayer(NetworkConnection conn, short playerControllerId)
     {
         GameObject lobbyPlayer = base.OnLobbyServerCreateLobbyPlayer(conn, playerControllerId);
         if (lobbyPlayer == null)
         {
             Debug.Log("The lobbyPlayer instancied by base.OnLobbyServerCreateLobbyPlayer(conn, playerControllerId); is null");
         }
         return lobbyPlayer;
     }
 
     public override bool OnLobbyServerSceneLoadedForPlayer(GameObject lobbyPlayer, GameObject gamePlayer)
     {
         return true;
     }
 }
 

When I start the host, my first custom message is displayed : "The lobbyPlayer instancied by base.OnLobbyServerCreateLobbyPlayer(conn, playerControllerId); is null"

When I set to ready, this one is displayed : "The gamePlayer instancied by base.OnLobbyServerCreateGamePlayer(conn, playerControllerId); is null" Plus, the lobbyPlayer is still present on the scene (according to the doc, I expected it to be replaced by the gamePlayer).

Are those things normal or not ?

Here is an archive of the sample project.