From 9d13a5b06a9f90e9cd9a8e489594f03b3d3ec4f0 Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Sun, 20 Dec 2020 22:53:07 +0900
Subject: [PATCH] Fix potential cross-thread list access

---
 .../Online/RealtimeMultiplayer/StatefulMultiplayerClient.cs   | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/osu.Game/Online/RealtimeMultiplayer/StatefulMultiplayerClient.cs b/osu.Game/Online/RealtimeMultiplayer/StatefulMultiplayerClient.cs
index b846d6732f..bf58849e35 100644
--- a/osu.Game/Online/RealtimeMultiplayer/StatefulMultiplayerClient.cs
+++ b/osu.Game/Online/RealtimeMultiplayer/StatefulMultiplayerClient.cs
@@ -309,14 +309,12 @@ namespace osu.Game.Online.RealtimeMultiplayer
             if (Room == null)
                 return Task.CompletedTask;
 
-            var players = Room.Users.Where(u => u.State == MultiplayerUserState.Playing).Select(u => u.UserID).ToList();
-
             Schedule(() =>
             {
                 if (Room == null)
                     return;
 
-                PlayingUsers.AddRange(players);
+                PlayingUsers.AddRange(Room.Users.Where(u => u.State == MultiplayerUserState.Playing).Select(u => u.UserID));
 
                 MatchStarted?.Invoke();
             });