Hi,
Thank you for the details, it helps a lot!
The issue is not the configuration, everything is set correctly, the plugin is not at fault.
The problem is caused by a 3rd party script, which is capturing the mouse scroll event to create some sort of a virtual Animated scroll, but that prevents inner element scrolling completely.
I have located the faulty script, it’s this one:
https://thebusinessratings.com/wp-content/plugins/gutenkit-blocks-addon/assets/js/lenis.js?ver=2.3.1
It points to this plugin directory: “gutenkit-blocks-addon”.
It does prevent all inner element scrolls, when I adjusted an item height to test via developer tools on the browser, it didn’t let me scroll that either: https://i.imgur.com/erdaBgn.png
It is probably the intended behavior for that plugin, but unfortunately it stops all other inner element scrolling too. Try checking if they have an option to disable that feature, otherwise it will prevent every inner element mousewheel scrolls everywhere.
You can also try to ask their plugin developer, maybe there is a way to prevent that or add exceptions some way.
I hope this helps!