Tweenlite instance kill

Hi all,

Hope everyone’s well. I’m using tweenlite to create a flicker affect on roll over, however when i rollover really fast the instance freezes half way through the transition and the button eventually goes to white.

The code im using is as follows:

private function initBtn1RollOver(evt:MouseEvent):void
		{
			TweenLite.to(homeMain.wolfePack_mc, .5, {mcColor:0xFFFFFF, ease:Bounce.easeOut});
			TweenLite.from(homeMain.wolfePack_mc, .5, {mcColor:0xFFFFFF, ease:Bounce.easeIn});
		}

i think im being stupid…

Any help is appreciated