Hi,
This sounds like a javascript related issue. Because it’s working in the preview, and there are no errors in the error console, I’m suspecting, that the plugin script is either not loaded properly, or the page is heavily cached and the plugin scripts are not queued.
The most likely issue is, that the plugin scripts aren’t loaded at all, and that only happens if:
– Either the wp_footer() function call is missing before the closing body tag, in the footer.php file in the theme folder
– ..or there is a fatal error somewhere on the page, after the plugin rendered, that prevents the footer from loading, thus causing missing script declarations
If you have a modified/custom made theme, then issue #1 is more likely, make sure to check the footer.php file for the wp_footer() call. Unnoticed/unreported fatal errors are usually caused by plugins, so disabling each one except the search could reveal that. Switching the theme temporarily rules out if the the issue is related to the theme.