Animation on horizontal sliding gallery act's different on different breakpoints

Hi guys,

I have setup a bunch of gallery’s that are all using scroll animations to move images from right to left as you scroll up and down.

The animation is working great on the 13" mb breakpoint, but when I work on the project on my 27" IMac I can see half of the images on scroll. It’s as if the % is different between the different breakpoints. Any ideas?

Here is an example: Trygfonden Kystlivredning

If you scale your browser you can see what I mean.

Is there a way to go about this?


Here is my public share link: LINK
(how to access public share link)