Avada - re-trigger isotope / masonry / packery grid to preserve grid

functions.php

<?php

// Add the following into functions.php

add_action( 'wp_footer', function() {
?>
<script>
(function($) {
    $(document).on('facetwp-loaded', function() {
        if (FWP.loaded) {
            $grid = $('.fusion-blog-layout-grid');
            $grid.isotope('appended', $grid.find('article'));
            $grid.imagesLoaded(function() {
                $grid.isotope('layout');
            });
        }
    });
})(jQuery);
</script>
<?php
}, 100 );