Are you able to send me a live link/URL to your search page so I can take a look?

Did you use Javascript to add the class and/or HTML when the page loads?

How did the classes come to be added then?

Ah. Do you know what that JavaScript is?

It would not need copying there, but you would need to find it, yes. It would be needed in a short JavaScript snippet to re-initialize it.

If you have a complete copy of the site files/folders on a local computer, you could use a tool to do the search. On my PC I use Notepad++ to do this.

You should look for ui-id

If this is part of the theme, can the theme author help?

The only alternative is to turn off Ajax.

The code snippet will fit in to our exemplar code like this:

<script>(function ( $ ) {
  "use strict";
  $(document).on("sf:ajaxfinish", ".searchandfilter", function(){
    console.log("ajax complete");

// call your function here

  });
}(jQuery));</script>