diff --git a/source/funkin/data/song/SongData.hx b/source/funkin/data/song/SongData.hx
index 938859ff2..26380947a 100644
--- a/source/funkin/data/song/SongData.hx
+++ b/source/funkin/data/song/SongData.hx
@@ -706,7 +706,7 @@ abstract SongEventData(SongEventDataRaw) from SongEventDataRaw to SongEventDataR
     this = new SongEventDataRaw(time, eventKind, value);
   }
 
-  public inline function valueAsStruct(?defaultKey:String = "key"):Dynamic
+  public function valueAsStruct(?defaultKey:String = "key"):Dynamic
   {
     if (this.value == null) return {};
     if (Std.isOfType(this.value, Array))
diff --git a/source/funkin/ui/debug/charting/ChartEditorState.hx b/source/funkin/ui/debug/charting/ChartEditorState.hx
index c59a5abdb..bdc0d311e 100644
--- a/source/funkin/ui/debug/charting/ChartEditorState.hx
+++ b/source/funkin/ui/debug/charting/ChartEditorState.hx
@@ -878,6 +878,8 @@ class ChartEditorState extends UIState // UIState derives from MusicBeatState
    */
   var noteDisplayDirty:Bool = true;
 
+  var noteTooltipsDirty:Bool = true;
+
   /**
    * Whether the selected charactesr have been modified and the health icons need to be updated.
    */
@@ -1541,6 +1543,7 @@ class ChartEditorState extends UIState // UIState derives from MusicBeatState
     // Make sure view is updated when the variation changes.
     noteDisplayDirty = true;
     notePreviewDirty = true;
+    noteTooltipsDirty = true;
     notePreviewViewportBoundsDirty = true;
 
     switchToCurrentInstrumental();
@@ -1562,6 +1565,7 @@ class ChartEditorState extends UIState // UIState derives from MusicBeatState
     // Make sure view is updated when the difficulty changes.
     noteDisplayDirty = true;
     notePreviewDirty = true;
+    noteTooltipsDirty = true;
     notePreviewViewportBoundsDirty = true;
 
     // Make sure the difficulty we selected is in the list of difficulties.
@@ -3663,8 +3667,13 @@ class ChartEditorState extends UIState // UIState derives from MusicBeatState
           selectionSquare.width = eventSprite.width;
           selectionSquare.height = eventSprite.height;
         }
+
+        // Additional cleanup on notes.
+        if (noteTooltipsDirty) eventSprite.updateTooltipText();
       }
 
+      noteTooltipsDirty = false;
+
       // Sort the notes DESCENDING. This keeps the sustain behind the associated note.
       renderedNotes.sort(FlxSort.byY, FlxSort.DESCENDING); // TODO: .group.insertionSort()
 
diff --git a/source/funkin/ui/debug/charting/commands/SetItemSelectionCommand.hx b/source/funkin/ui/debug/charting/commands/SetItemSelectionCommand.hx
index 46fcca87c..73cf80fa0 100644
--- a/source/funkin/ui/debug/charting/commands/SetItemSelectionCommand.hx
+++ b/source/funkin/ui/debug/charting/commands/SetItemSelectionCommand.hx
@@ -51,7 +51,12 @@ class SetItemSelectionCommand implements ChartEditorCommand
       }
       var eventData = eventSelected.valueAsStruct(defaultKey);
 
-      state.eventDataToPlace = eventData;
+      var eventDataClone = Reflect.copy(eventData);
+
+      if (eventDataClone != null)
+      {
+        state.eventDataToPlace = eventDataClone;
+      }
 
       state.refreshToolbox(ChartEditorState.CHART_EDITOR_TOOLBOX_EVENT_DATA_LAYOUT);
     }
diff --git a/source/funkin/ui/debug/charting/components/ChartEditorEventSprite.hx b/source/funkin/ui/debug/charting/components/ChartEditorEventSprite.hx
index f680095d7..c996079bc 100644
--- a/source/funkin/ui/debug/charting/components/ChartEditorEventSprite.hx
+++ b/source/funkin/ui/debug/charting/components/ChartEditorEventSprite.hx
@@ -164,8 +164,7 @@ class ChartEditorEventSprite extends FlxSprite
       this.eventData = value;
       // Update the position to match the note data.
       updateEventPosition();
-      // Update the tooltip text.
-      this.tooltip.tipData = {text: this.eventData.buildTooltip()};
+      updateTooltipText();
       return this.eventData;
     }
   }
@@ -188,6 +187,13 @@ class ChartEditorEventSprite extends FlxSprite
     this.updateTooltipPosition();
   }
 
+  public function updateTooltipText():Void
+  {
+    if (this.eventData == null) return;
+    if (this.isGhost) return;
+    this.tooltip.tipData = {text: this.eventData.buildTooltip()};
+  }
+
   public function updateTooltipPosition():Void
   {
     // No tooltip for ghost sprites.
diff --git a/source/funkin/ui/debug/charting/toolboxes/ChartEditorEventDataToolbox.hx b/source/funkin/ui/debug/charting/toolboxes/ChartEditorEventDataToolbox.hx
index 50b341272..f0949846d 100644
--- a/source/funkin/ui/debug/charting/toolboxes/ChartEditorEventDataToolbox.hx
+++ b/source/funkin/ui/debug/charting/toolboxes/ChartEditorEventDataToolbox.hx
@@ -258,14 +258,15 @@ class ChartEditorEventDataToolbox extends ChartEditorBaseToolbox
         // Edit the event data of any existing events.
         if (!_initializing && chartEditorState.currentEventSelection.length > 0)
         {
-          for (event in chartEditorState.currentEventSelection)
+          for (songEvent in chartEditorState.currentEventSelection)
           {
-            event.eventKind = chartEditorState.eventKindToPlace;
-            event.value = chartEditorState.eventDataToPlace;
+            songEvent.eventKind = chartEditorState.eventKindToPlace;
+            songEvent.value = Reflect.copy(chartEditorState.eventDataToPlace);
           }
           chartEditorState.saveDataDirty = true;
           chartEditorState.noteDisplayDirty = true;
           chartEditorState.notePreviewDirty = true;
+          chartEditorState.noteTooltipsDirty = true;
         }
       }
     }