Sprite scaling, strange behaviour, where is the limit?

1

Hi,

I’ve found that sprite scaling works strangely when I use quite small or big numbers.

Here is a code which works under a limit but above that the scaling just stops

there are two rectangles, a big and a small in the big.
at the beginning it scales and then it just stops.

        var spr1:Sprite = new Sprite();
        var spr2:Sprite = new Sprite();
        
        spr1.graphics.clear();
        spr1.graphics.beginFill(0xff0000);
        spr1.graphics.drawRect(-150,-150, 300, 300);
        spr1.graphics.endFill();
        
        
        spr2.graphics.clear();
        spr2.graphics.beginFill(0x00ff00);
        spr2.graphics.drawRect(-20, -20, 40, 40);
        spr2.graphics.endFill();
        
        spr2.scaleX = 0.0001;
        spr2.scaleY = 0.0001;
        
        spr1.addChild(spr2);
        
        addChild(spr1);
        
        addEventListener(Event.ENTER_FRAME, function(event:Event)
        {
            spr1.scaleX += 1000;
            spr1.scaleY += 1000;

        });

do you know why?
or I missed something?

thanks in advance
Viktor