diff --git a/osu.Game.Rulesets.Mania/UI/Column.cs b/osu.Game.Rulesets.Mania/UI/Column.cs
index 6a31fb3fda..10460f52fd 100644
--- a/osu.Game.Rulesets.Mania/UI/Column.cs
+++ b/osu.Game.Rulesets.Mania/UI/Column.cs
@@ -134,6 +134,9 @@ namespace osu.Game.Rulesets.Mania.UI
 
         protected override void Dispose(bool isDisposing)
         {
+            // must happen before children are disposed in base call to prevent illegal accesses to the hit explosion pool.
+            NewResult -= OnNewResult;
+
             base.Dispose(isDisposing);
 
             if (skin != null)
diff --git a/osu.Game.Rulesets.Mania/UI/Stage.cs b/osu.Game.Rulesets.Mania/UI/Stage.cs
index fc38a96a35..c1d3e85bf1 100644
--- a/osu.Game.Rulesets.Mania/UI/Stage.cs
+++ b/osu.Game.Rulesets.Mania/UI/Stage.cs
@@ -156,6 +156,9 @@ namespace osu.Game.Rulesets.Mania.UI
 
         protected override void Dispose(bool isDisposing)
         {
+            // must happen before children are disposed in base call to prevent illegal accesses to the judgement pool.
+            NewResult -= OnNewResult;
+
             base.Dispose(isDisposing);
 
             if (currentSkin != null)