Orderable - Fix issue where addons are not working for some product.

orderable-pro-increase-addons-query-limit.php

<?php
/**
 * Orderable - Fix issue where addons are not working for some product.
 * This issue happens because by default for performance reasons,
 * orderable only loads the first 100 product addons posts (orderable_addons)
 * This snippet would force load 500 addons.
 *
 * @param WP_Query $q Query.
 *
 * @return void
 */
function orderable_fix_increase_addons_limit( $q ) {
	$post_type = $q->get( 'post_type' );

	if ( 'orderable_addons' === $post_type && 100 == $q->get( 'posts_per_page' ) ) {
		$q->set( 'posts_per_page', 500 );
	}

}
add_action( 'pre_get_posts', 'orderable_fix_increase_addons_limit' );