yup. when you have two tweens at the same time trying to animate the same property of the same object you will cause an overwrite which means the new tween will kill the existing tween. Its wasteful to have 2 tweens fighting for control at the same time so GSAP has this optimization built in. So when you play your timeline again, some of the tweens have been killed thus making the animation look different.   2 solutions:    change your timing so that tweens do no not overla