         if (!flipbook && lastItem == null) {
             // The layer is empty.
             _currentDisplay = new Sprite();
-            _currentDisplay.name = null;
             _movie.addChild(_currentDisplay);
         } else {
             // Create the display objects for each keyframe.

            _currentDisplay.visible = true;

            _frameOvershootDisplay = new Sprite();
            _frameOvershootDisplay.name = null;
            _frameOvershootDisplay.visible = false;
            _movie.addChild(_frameOvershootDisplay);
        }

                    display = library.createDisplayObject(kf.ref);
                }
                _displays[ii] = display;
                display.visible = false;
                _movie.addChild(display);
            }
