Background animation working in preview, but not after publishing


I have a an accordion set up on my site, with Collection items in each dropdown. Each collection item, on hover, activates an image and coloured background to appear. This works great in the Designer and Preview but once it’s published there’s no colour background anymore.

I’ve double checked the interactions, and logged out, in and republished - but no luck.


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