Show More Articles not working

When attempting to expand more articles it appears not to be working, I have disabled all plugins, changed themes, cleared cache, tried toggling and changing settings, and I’m not seeing any real errors for it in the console.

I’m using Hello Elementor theme, but I did not create a elementor page for the KB.

Disabled all other plugins
Tested in Elementor Safe Mode
Switched to Twenty Twenty-Four theme
Cleared all caches (WP Super Cache & browser)
Tried multiple browsers and incognito mode
Inserted custom JavaScript in Footer to trigger .click() and .classList.remove(‘hidden’) (did not bind or fire)
Forced visibility with CSS override: .epkb-article.hidden { display: block !important; }
Checked browser console:
No specific error on button click
Noted MutationObserver TypeError and 500 server error when fetching content
Confirmed typeof jQuery is ‘function’ and scripts are enqueued

Note that the CSS override and console stuff was done because Chat GPT told me too, lol, and it wrote the above but I did do all of the steps provided, very carefully combing through articles and chat gpt to try to figure it out. The show more works on the KB main category page.

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