dropTarget.name is not resolving correctly

programming flash
1

I have 2 custom class objects (both MC). I want to check when objA is dragged onto the objB.
Each class constructor defines it name value, so on creation in my document class, if I trace thier names they come out as objA and objB.
In the code for objA, I manage the startDrag and stopDrag:

  function toDrag(e$:MouseEvent):void{
   this.startDrag(true);
   was = new Point(this.x, this.y);
   trace("Placing a "+this.name);
  }
  
  function toDrop(e$:MouseEvent):void{
   if(!this.dropTarget){
    dropFail(this);
   }
   trace(this.name+" Is dropping on "+this.dropTarget.name);
   dropFail(this);
  }
  function dropFail(obj:Sprite):void{
   obj.stopDrag();
   obj.x = was.x;
   obj.y = was.y;
   
  }

[EDIT]: Don’t worry about the dropFail(), as while testing, I want things to move back
When I try this out, this.dropTraget.name comes out as Instance#, instead of objB. Why? I made a click check in objB:

  function NameMe($e:MouseEvent):void{
   trace("Clicked on "+this.name);
  }

This comes back with the right name, but the dropTarget call does not. Again, why?