From 2b74dbca28c24f1d3f2077ab272ed99deac5b33d Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Mon, 11 Apr 2022 13:36:01 +0900
Subject: [PATCH] Fix potential crash in `DrawableRoom` due to lack of null
 check on post-lookup beatmap

---
 .../OnlinePlay/Lounge/Components/DrawableRoom.cs   | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/osu.Game/Screens/OnlinePlay/Lounge/Components/DrawableRoom.cs b/osu.Game/Screens/OnlinePlay/Lounge/Components/DrawableRoom.cs
index 5adce862a0..8e3aa77e7b 100644
--- a/osu.Game/Screens/OnlinePlay/Lounge/Components/DrawableRoom.cs
+++ b/osu.Game/Screens/OnlinePlay/Lounge/Components/DrawableRoom.cs
@@ -418,10 +418,16 @@ namespace osu.Game.Screens.OnlinePlay.Lounge.Components
                                       var retrievedBeatmap = task.GetResultSafely();
 
                                       statusText.Text = "Currently playing ";
-                                      beatmapText.AddLink(retrievedBeatmap.GetDisplayTitleRomanisable(),
-                                          LinkAction.OpenBeatmap,
-                                          retrievedBeatmap.OnlineID.ToString(),
-                                          creationParameters: s => s.Truncate = true);
+
+                                      if (retrievedBeatmap != null)
+                                      {
+                                          beatmapText.AddLink(retrievedBeatmap.GetDisplayTitleRomanisable(),
+                                              LinkAction.OpenBeatmap,
+                                              retrievedBeatmap.OnlineID.ToString(),
+                                              creationParameters: s => s.Truncate = true);
+                                      }
+                                      else
+                                          beatmapText.AddText("unknown beatmap");
                                   }), cancellationSource.Token);
             }
         }