Bug MLAPI Exception - "You must initialize the RpcQueueContainer before using MLAPI"

I've been trying to pick up MLAPI for the last week and I'm now working on a basic lobby/connection screen where you would be able to connect as client or as a host.
My idea is to check if the player is running only as a client or as a Host. Then, there are 2 cases:
1 - The host is trying to leave, then I want everyone to be disconnected from the server and update every client's UI accordingly.
2 - only a client is leaving which doesn't require any networking other than NetworkManager.StopClient().
That's what my ServerRpc function is trying to do: If we are a Server it calls a ClientRpc method to update UI for all connected clients, but when the method is called i get that exception and the UI doesn't update. I tried making the function that's wired to the button a regular function (not an rpc function) which does the "are we a server" check and then proceeds to call the serverRpc and ClientRpc accordingly, But I got the same error. what can I do ? thanks in advance

 

Hi

In my case I have a welcome server to managed players login, start game servers requested by the players, and then managed player list on each started game. When all players of a game are ready, they disconnect from welcome server to connect to the game server.
To do that, when all players are ready, the Welcome server call "StartBattleClientRpc" on each client. If I call StopClient() from within the StartBattleClientRpc method I have an error and the client stop.
I managed to make it works by using a coroutine to stop the Client on ne the next frame. And it works fine. Is it the good way to do that ? I don't know, but it's ok for a personal project.