Variation images for products below “Load more”-button don’t show on shop page

Hello,

The variation swatches don’t show on the shop page/homepage for any product that is loaded with the “Load more”-button.

I made a short screencast to show the issue:
https://drive.google.com/file/d/16ZE2scfwW4iI4pce6ss2CXYvvxxnI71D/view

The products swatches are set up correctly. I also tried disabling WP Rocket cache and AssetCleanup. I cleared cache, server cache, JS/CSS and browser cache after disabling them but nothing helped.

Any idea where I can start troubleshooting?

Cheers,
Stan