WP Filter not working/filtering posts

I’ve set up the WP Filters widget, on the same page as the Dynamic LIsting widget, as explained in the docs.

The posts are coming in fine (though the styling seems to not be pulling correctly from the Loop template…but that’s a different issue), hwoever when clicking the filter box at the left, it doesn’t filter the posts.

It’s a checkbox filter using an ACF connection for a field called ‘Spotlight’ The field name is correct, I’ve double checked and also it is pulling in the ‘Yes’ value set up for that field in ACF, where it wouldn’t if it wasn’t correct.

There are 4 posts being pulled in there, and 3 of them have Spotlight value ticked on the post, one of them does not….so when ticking the Spotlight – Yes in the WP Filter widget, I would expect it to filter out that one post that doesn’t have that option checked, but nothing is happening. Am I missing osmething in the setup?

The page I need help with: [log in to see the link]