DragAndDrop.StartDrag not worked on OSX

Hi, everyone.

I wrote an editor script to create a EditorWindow. It's use for manager some asset.

I call DragAndDrop.StartDrag() to start a drag&drop in this EditorWindow. Another EditorWindow can get DragPerform event to finish the drag&drop. It works very well on windows.

On the Mac, you can see the drag title, but can't get any DragXXXXX event. But if you drag a asset from project view to the EditorWindows, it works.

the code like this:

 void OnGUI()
 {
     if (Event.current.type == Event.mouseDrag)
     {
         DragAndDrop.PrepareStartDrag();
         DragAndDrop.StartDrag("DragComponent");
         DragAndDrop.objectReferences = Selection.objects;
     }
 }

window2:

 void OnGUI()
 {
     DragAndDrop.AcceptDrag();
     if (Event.current.type == Event.DragUpdated )
     {
          DragAndDrop.visualMode = DragAndDropVisualMode.Link;
          //dosomething
     }
 
     if (Event.current.type == Event.DragPerform )
     {
          //dosomething
     }
 }

Is there something wrong with my code? Or it is a bug? Does anyone know about this?