echo '

DEBUG home parent_id: ' . $parent_id . '

'; echo '

DEBUG current_series_id: ' . get_query_var('current_series_id') . '

'; echo '

DEBUG page_on_front: ' . get_option('page_on_front') . '

'; echo '

DEBUG post->ID: ' . get_the_ID() . '

'; set_query_var('current_series_id', $parent_id); get_template_part('template-parts/series-list');