Joining a session loads the index 0 scene

When I join the session as GameMode.Client it successfully connect and I can see it spawn on Host. However it loads the first scene (which is just my Menu)

 // Create the Fusion runner and let it know that we will be providing user input

     _runner = gameObject.AddComponent<NetworkRunner>();

     _runner.ProvideInput = true;

     // Start or join (depends on gamemode) a session with a specific name

     await _runner.StartGame(new StartGameArgs()


       GameMode = GameMode.Client,

       Scene = SceneManager.GetActiveScene().buildIndex,

       SceneManager = gameObject.AddComponent<NetworkSceneManagerDefault>()