From bf85f4affb1eca46513b17dd2442b40df78cce32 Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Wed, 18 Dec 2019 17:53:26 +0900
Subject: [PATCH] Fix editor crashing when loading a beatmap for an unsupported
 ruleset

---
 osu.Game/Screens/Edit/Compose/ComposeScreen.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/osu.Game/Screens/Edit/Compose/ComposeScreen.cs b/osu.Game/Screens/Edit/Compose/ComposeScreen.cs
index 6984716a2c..5d9757778d 100644
--- a/osu.Game/Screens/Edit/Compose/ComposeScreen.cs
+++ b/osu.Game/Screens/Edit/Compose/ComposeScreen.cs
@@ -32,6 +32,6 @@ namespace osu.Game.Screens.Edit.Compose
             return beatmapSkinProvider.WithChild(rulesetSkinProvider.WithChild(composer));
         }
 
-        protected override Drawable CreateTimelineContent() => new TimelineHitObjectDisplay(composer.EditorBeatmap);
+        protected override Drawable CreateTimelineContent() => composer == null ? base.CreateTimelineContent() : new TimelineHitObjectDisplay(composer.EditorBeatmap);
     }
 }