Adding gif component makes GSAP behave weird

[MMMMMoris]

I am using "gsap": "^3.12.5" with "vue": "^3.5.13"
I am trying to make a doll grabbing machine on web.
There is a hook with 10000px height, most of it is hidden above the viewport of the browser.
When I click, the hook moves down and reach for the dolls at the bottom of the viewport.
Here is the thing. While the hook fetching the doll, I would like to display a gif, with position: absolute style
It is the very moment that the hook suddenly moves out of the viewport !

you can see its translate(22.5566vw, 87.2345vh); prop, which I have never added into.

Here is the code, really simple one.

gsap.to(hookRef.value, {
    y: `72vh`,
    ease: "none",
    duration: 1,
    repeat: 1,
    yoyo: true,
    onComplete: () => {
      store.commit("updateHookStatus", "halt")
    },
    onRepeat: () => {
      if (Math.random() >= 0.3) {
        store.commit("updateGrabbedMascot", true)
      } else {
        store.commit("updateGrabbedMascot", false)
        showCat()
      }
    }
  })

showCat() is the part I use v-if to display a cat gif

The abnormal position of the hook ending up diffs each time.
What is more CONFUSING, there is very small odd that the hook behaves normal.
But just small odd. Mostly it flies out of the viewport.
Things works fine without the cat gif.

[MMMMMoris]

I will later try to provide a minimal code pack to present the issue I am facing

[jackdoyle]

Hi @MMMMMoris

Yeah, it's pretty much impossible for us to troubleshoot without a minimal demo. The problem could be in your CSS, a 3rd party library, or any number of other things. You don't have any CSS transitions applied to anything that's being animated with GSAP, do you?

Once we see a minimal demo that clearly illustrates the issue (like a CodePen or Stackblitz), we'd be happy to take a peek. The best place for things like this is in the forums at https://gsap.com/community. Here are some Vue starter templates you could fork: https://stackblitz.com/@gsap-dev/collections/gsap-vue3-starters