Why ColorMatrix doesn't work on iOS ?

Hi, as the Adobe Evangelist Ryan Stewart does in this video (time - 2.45) --> http://www.youtube.com/watch?v=jBL1BJrcjUY

I want to apply a Color Matrix Filter to my MovieClip/Loader containing an image.

Here is the code I used:

stage.addEventListener(MouseEvent.MOUSE_DOWN,fn_mD);

function fn_mD(e:MouseEvent):void

{

var matrix:Array = new Array();

matrix = matrix.concat([0.5,0.5,0.5,0,0]);// red

matrix = matrix.concat([0.5,0.5,0.5,0,0]);// green

matrix = matrix.concat([0.5,0.5,0.5,0,0]);// blue

matrix = matrix.concat([0,0,0,1,0]);// alpha

var my_filter:ColorMatrixFilter = new ColorMatrixFilter(matrix);

myObjectName.filters = [my_filter];

}

Making the preview by pressing ALT+F12 (Mac) or only F12 (Windows) all works perfectly... but after the publishing on iOS it doesn't work.

Can you help me???

Thanks

Brandon