Polylang / Enfold incompatibility inserts custom_class=

Hi all,

We have been using Enfold with Polylang for around a year. It has worked well to translate pages from English into German and then Spanish. However it has recently been causing issues whereby the frontend layout was broken. After some investigation, it seems that during the translation process, code is inserted ‘custom_class=’ or even ‘custom_class’ in the section and column elements. This therefore stops the execution of the page rendering and requires a manual cleanup of layout elements. I note that if an element has already been assigned an ID or class, this doesn’t happen.

I have tried the following to filter the outputs, but that hasn’t worked.

Any ideas of what else I can look into, or why this might be happening?

// Prevent Polylang from modifying Enfold shortcodes during duplication
add_filter(‘pll_copy_post_metas’, ‘preserve_enfold_alb_data’, 10, 3);
function preserve_enfold_alb_data($metas, $sync, $from) {
// Remove _aviaLayoutBuilder_active from auto-sync to force manual handling
$metas = array_diff($metas, array(‘_aviaLayoutBuilder_active’));
return $metas;
}

// Clean up malformed custom_class parameters in shortcodes
add_filter(‘the_content’, ‘fix_polylang_enfold_shortcodes’, 1);
function fix_polylang_enfold_shortcodes($content) {
// Remove empty custom_class parameters from sections and columns
$content = preg_replace(‘/custom_class=[\'”]{2}/’, ”, $content);
$content = preg_replace(‘/custom_class=[\'”][\s]*[\'”]/’, ”, $content);
return $content;
}

// Clean up malformed HTML output
add_filter(‘the_content’, ‘remove_custom_class_id_from_html’, 999);
function remove_custom_class_id_from_html($content) {
// Remove id=”custom_class=” (malformed with extra equals)
$content = preg_replace(‘/\s+id=[“\’]custom_class=[“\’]?/i’, ‘ ‘, $content);

// Remove id=”custom_class” (literal value only)
$content = preg_replace(‘/\s+id=[“\’]custom_class[“\’]/i’, ‘ ‘, $content);

return $content;
}`