diff --git a/osu.Game/Beatmaps/BeatmapConverter.cs b/osu.Game/Beatmaps/BeatmapConverter.cs
index 4419791e43..c7c244bf0e 100644
--- a/osu.Game/Beatmaps/BeatmapConverter.cs
+++ b/osu.Game/Beatmaps/BeatmapConverter.cs
@@ -47,6 +47,7 @@ namespace osu.Game.Beatmaps
             // Shallow clone isn't enough to ensure we don't mutate beatmap info unexpectedly.
             // Can potentially be removed after `Beatmap.Difficulty` doesn't save back to `Beatmap.BeatmapInfo`.
             original.BeatmapInfo = original.BeatmapInfo.Clone();
+            original.ControlPointInfo = original.ControlPointInfo.DeepClone();
 
             return ConvertBeatmap(original, cancellationToken);
         }