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

            _currentDisplay.visible = true;

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

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