Help with finding how scroll is controlling this video

So this Is a clone I’ve seen a couple times and its really interesting. I’ve taken all the interactions away but somehow when you scroll back and forth it still controls the video timeline. I can be kinda hard to notice but it is still doing it. Any idea on how this is happening?

@Ryan_Goldberg there is a script on the page settings that is controlling the hide/show of the videos.

Thanks, I noticed that as well, totally forgot that was a place for custom code!