Não há saída de rastreamento do meu evento personalizado, por que?

lasse @CustomEvent com propriedade de valor:

package {

    import flash.events.Event;

     public class CustomEvent extends Event
     {
        public static const ON_CUSTOM_EVENT:String = "onCustomEvent";
        public var value:Number;

        public function CustomEvent(type:String, bubbles:Boolean=false, cancelable:Boolean=false):void
        {
           super(type, bubbles, cancelable);
        }

     }

}

Classe de teste com um controle deslizante que apenas despacha novamente o evento do controle deslizante:

package {

    import flash.display.*;
    import flash.net.*;
    import flash.events.*;
    import fl.events.SliderEvent;
    import fl.controls.Slider;

    public class TestCustomEvent extends MovieClip {        

      private var cEvent: CustomEvent;

      public function TestCustomEvent() {   

        addEventListener( Event.ADDED_TO_STAGE, init);  

      }

      public function init( e:Event ):void {

        removeEventListener( Event.ADDED_TO_STAGE, init );

        this.addEventListener(CustomEvent.ON_CUSTOM_EVENT,OnCustomEvent);
        slider.addEventListener(SliderEvent.CHANGE,OnSliderEventChange);

      } 



      public function OnCustomEvent(event:CustomEvent): void {

            trace(event.value);
      }


      public function OnSliderEventChange(event:SliderEvent) {

            cEvent = new CustomEvent("OnCustomEvent");
            cEvent.value = event.value;
            dispatchEvent(cEvent);
                    trace("hello");

      }

    }       
}