diff --git a/osu.Game/Screens/Play/Player.cs b/osu.Game/Screens/Play/Player.cs
index 6827ff04d3..cd7bf6fe9e 100644
--- a/osu.Game/Screens/Play/Player.cs
+++ b/osu.Game/Screens/Play/Player.cs
@@ -4,6 +4,7 @@
 #nullable disable
 
 using System;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Threading;
@@ -828,9 +829,17 @@ namespace osu.Game.Screens.Play
 
         private bool onFail()
         {
+            // Failing after the quit sequence has started may cause weird side effects with the fail animation / effects.
+            if (GameplayState.HasQuit)
+                return false;
+
             if (!CheckModsAllowFailure())
                 return false;
 
+            Debug.Assert(!GameplayState.HasFailed);
+            Debug.Assert(!GameplayState.HasPassed);
+            Debug.Assert(!GameplayState.HasQuit);
+
             GameplayState.HasFailed = true;
 
             updateGameplayState();