Events Manager - Recurring Events

function pm_generate_recurring_event_custom_permalink($result, $data, $event_ids, $post_ids) {
    global $permalink_manager_uris;

    if(!empty($post_ids) && is_array($post_ids)) {
        foreach($post_ids as $post_id) {
            $default_uri = Permalink_Manager_URI_Functions_Post::get_default_post_uri($post_id);

            if($default_uri) {
                $permalink_manager_uris[$post_id] = $default_uri;
            }
        }

        update_option('permalink-manager-uris', $permalink_manager_uris);
    }

    return $result;
}
add_filter('em_event_save_events', 'pm_generate_recurring_event_custom_permalink', 10, 4);