Playlist can sometimes disappear in multiplayer playlist rooms

[smoogipoo]

Type

Game behaviour

Bug description

When the LoungeSubScreen is suspended, in most cases the listing poll is also suspended. This is important because the listing request receives a more compact model that doesn't contain the playlist.

osu/osu.Game/Screens/OnlinePlay/Lounge/LoungeSubScreen.cs

Lines 393 to 401 in 23ef8fd

	private void updatePollingRate(bool isCurrentScreen)
	{
	if (!isCurrentScreen)
	ListingPollingComponent.TimeBetweenPolls.Value = 0;
	else
	ListingPollingComponent.TimeBetweenPolls.Value = isIdle.Value ? 120000 : 15000;
	Logger.Log($"Polling adjusted (listing: {ListingPollingComponent.TimeBetweenPolls.Value})");
	}

But it is possible for the request to fire at just the right time so that it succeeds after the room is joined and clears the existing playlist. This can be reproed by adjusting the above code to always poll every second.

There's quite a bit involved here and it's likely going to be fixed as part of further refactors rather than a direct fix, but I'll keep this issue for tracking.

Screenshots or videos

No response

Version

23ef8fd

Logs

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