Lobby Players does not update on player disconnect

Unity Services
,
1

Every two seconds I call:

joinedLobby = await LobbyService.Instance.GetLobbyAsync(joinedLobby.Id);
Debug.Log(joinedLobby.Players.Count)

If I have two players connected in a lobby and I close on the players window, it never disconnects from the lobby it seems. (I have Disconnect Removal Time set to 15s)
The player count is always 2 according to the debug.log.

Is it possible that my joinedLobby variable or the Players does not get updated correctly from the GetLobbyAsync?

2

Are you integrated with Relay or using the Lobby real-time event updates? You won’t get any player disconnections at all if neither of those things are being used.

3

Ah so instead of using the GetLobbyAsync every two seconds I should use the Lobby events? And GetLobbyAsync does not update the lobby information itself?

4

GetLobbyAsync is actually doing what you expect - if I understand your setup correctly, the problem is that the players aren’t changing, so showing that the player count is always 2 is expected. The reason I mention Relay or the Lobby events is because those are the 2 ways that the Lobby service actually detects players disconnecting.

In other words, if your code only creates a lobby and joins a 2nd player into it without doing anything else, and then you close the windows, the Lobby service will not be able to detect a disconnection and remove the player. You need to either use Relay or events to get that functionality.

5

Thanks the lobby event system worked for me.
For future people reading this, the way I fixed my issue was downloading the latest lobby version (1.1.0-pre.5)
and adding the following callbacks and subscribing to the relevant lobby:

        var callbacks = new LobbyEventCallbacks();
        callbacks.PlayerLeft += OnPlayerLeft;
        callbacks.LobbyChanged += OnLobbyChanged;
        callbacks.PlayerJoined += OnPlayerJoined;
        try
        {
            await Lobbies.Instance.SubscribeToLobbyEventsAsync(joinedLobby.Id, callbacks);
        }
        catch (LobbyServiceException ex)
        {
            switch (ex.Reason)
            {
                case LobbyExceptionReason.AlreadySubscribedToLobby: Debug.LogWarning($"Already subscribed to lobby[{joinedLobby.Id}]. We did not need to try and subscribe again. Exception Message: {ex.Message}"); break;
                case LobbyExceptionReason.SubscriptionToLobbyLostWhileBusy: Debug.LogError($"Subscription to lobby events was lost while it was busy trying to subscribe. Exception Message: {ex.Message}"); throw;
                case LobbyExceptionReason.LobbyEventServiceConnectionError: Debug.LogError($"Failed to connect to lobby events. Exception Message: {ex.Message}"); throw;
                default: throw;
            }
        }

Where in my OnPlayerLeft()/OnPlayerJoined function I update the UI of my lobby and in my OnLobbyChanged() function I check if a new game has been started and join the according Relay.
joinedLobby here is a variable which keeps track of the lobby the player has joined.
Code like seen in the docs: Lobby events

6

For me onplayerleft still doesn’t work when I close the window it works when I leave normally I don’t understand

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