I'm Having an issue with the Timeline ending before the animation is completed.

[pyrocro]

I'm using Google PlayN(Java)

(1) Am I creating the timelines correctly? all of my timelines are generally created this way.
//****************************************************************************************************************
public static Timeline doSexyZoomScaleIn(ImageLayerContainerLocal ilc,float delay){
Timeline animationTimeline = Timeline.createParallel().beginParallel()
.push(Tween.from(ilc, TweenEngineAccessorContainer.SCALE, 400.0f).target(5f, 5f).ease(TweenEquations.easeOutBack))
.push(Tween.to(ilc, TweenEngineAccessorContainer.ALPHA, 200).target(0.4f).ease(TweenEquations.easeOutBack))
.end();
return animationTimeline;
}
//********************************************************************************************************

(2) I see you have a fix for this bug 2 years ago, and switching to 6.3.3 really made a big difference in the frequency the issues occurs but It did not stop it. Is it something I'm doing that may cause the issue to occur?

I'm also attaching callbacks so I can trigger events in my app. any insight will be greatly appreciated, even if it to point me to where the timelines are managed in the api and I'll try fixing it myself(I have tried).