Strange behaviour during a function call

[danissimo]

I have a timeline with infinite repeat and a function call. There are couple of Tweens in that function. It seems these tweens don't fire during the first cycle but do fire in the next cycles. When I delete the repeat option timeline works as expected. Do I miss something?  GSAP 12.1.0 rc2.

Here's the code:

var portraitsTimeline:TimelineMax =  new TimelineMax ({delay:1, repeat:-1, repeatDelay:1});

portraitsTimeline.set (overlay, {visible:false})
		 .call (switchPortraits);

function switchPortraits():void {
	if (!picBox_2.visible){
		picBox_2.visible = true;
	}

	if (currentPortraitNumber < 5){
		currentPortraitNumber++;
	} else {
		currentPortraitNumber = 1;
	}

	if (odd){
		odd = false;
		portraitCurrent = picBox_1;
		portraitNext = picBox_2;
	} else {
		odd = true;
		portraitCurrent = picBox_2;
		portraitNext = picBox_1;
	}

	if (portraitNext.numChildren > 2){
		portraitNext.removeChildAt (2);
	}
		
	var dynamicClassName:String = "Portrait_" + currentPortraitNumber;
	var classReference:Class = getDefinitionByName (dynamicClassName) as Class;
	var currentPortrait:Bitmap = new Bitmap (new classReference (180, 156));

	portraitNext.addChild (currentPortrait);
	portraitNext.getChildAt (2).x = -90;
	portraitNext.getChildAt (2).y = -78;
	
	TweenLite.fromTo (portraitCurrent, 0.7, {x:120, y:115, rotationY:0, scale:1}, {x:-50, y:110, rotationY:50, scale:0.9, ease:Cubic.easeInOut, onStart:function():void {tweenActive = true;}, onComplete:function():void {tweenActive = false;}});
	TweenLite.fromTo (portraitNext, 0.7, {x:290, y:110, rotationY:-50, scale:0.9}, {x:120, y:115, rotationY:0, scale:1, ease:Cubic.easeInOut});
}

[GreenSock]

Ah yes, good catch. That's a very unusual setup (a zero-duration timeline that repeats) which is great because it exposed something that needed to get resolved. Please try the attached updated files and let us know if they work well for you. 

GSAP_12.1.0_rc3.zip

[danissimo]

Now it works as expected, thank you!