From 99fb86878e42a75d162a2742b45f3c6f9779f79b Mon Sep 17 00:00:00 2001
From: Jamie Taylor <me@nekodex.net>
Date: Wed, 6 Oct 2021 18:31:56 +0900
Subject: [PATCH] Only detach filter on disposal if attached

---
 osu.Game/Audio/Effects/Filter.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Audio/Effects/Filter.cs b/osu.Game/Audio/Effects/Filter.cs
index 2036851cad..428a69bb19 100644
--- a/osu.Game/Audio/Effects/Filter.cs
+++ b/osu.Game/Audio/Effects/Filter.cs
@@ -118,7 +118,9 @@ namespace osu.Game.Audio.Effects
         protected override void Dispose(bool isDisposing)
         {
             base.Dispose(isDisposing);
-            detachFilter();
+
+            if (mixer.Effects.Contains(filter))
+                detachFilter();
         }
     }
 }