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.
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.
Type
Game behaviour
Bug description
When the
LoungeSubScreenis 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.https://github.com/ppy/osu/blob/23ef8fd909f1cdbfc1662a35d281cd001fb71aad/osu.Game/Screens/OnlinePlay/Lounge/LoungeSubScreen.cs#L393-L401
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
23ef8fd909f1cdbfc1662a35d281cd001fb71aad
Logs
.