Thank you, @Rodrigo for your help, I really appreciate it. I have few questions about scrolltrigger, so why when I set markers in scrollTrigger parameters, then second vertical scroll shows up, and only when I control it manually animation happened? But on the other hand when markers = false, then nothing gonna happen, I litterally copied the https://stackblitz.com/edit/react-cxv92j?file=src%2FApp.js, locally it like seems code in useLayoutEffect is not working, but effect is called