function mtm_taxonomy_query_sub($archivetype, $display = 3, $order = 'DESC', $orderby = 'date')
{
    $taxonomy = mtm_acf_taxonomy_sub_property($archivetype, 'taxonomy');
    $terms = mtm_acf_taxonomy_sub_property($archivetype, 'name');
    if (get_sub_field('mtm_' . $archivetype . '_archive_taxonomy_number')) {
        $display = get_sub_field('mtm_' . $archivetype . '_archive_taxonomy_number');
    }
    return mtm_page_component_taxonomy_query($taxonomy, $terms, $display, $orderby, $order);
}
<?php

$taxurl = mtm_acf_taxonomy_sub_property('home_topic', 'taxonomy');
$termurl = mtm_acf_taxonomy_sub_property('home_topic', 'slug');
$pathurl = $taxurl . '/' . $termurl;
?>

<h3 class="mtm-home-topic--label <?php 
echo esc_html($termurl);
?>
"><a href="<?php 
echo esc_url(home_url($pathurl));
?>
"><?php 
echo esc_html(mtm_acf_taxonomy_sub_property('home_topic', 'name'));
?>
</a></h3>

<?php 
the_mtm_post_thumbnail('medium_large', 'mtm-home-topic--image');
?>

<h4 class="mtm-home-topic--primary"><a href="<?php 
the_permalink();
?>
"><?php 
the_title();
?>
</a></h4>
<?php 
}
if ('Pick From Taxonomy' == get_sub_field('mtm_list_archive_select')) {
    // Taxonomy Source
    ?>

	<div class="mtm-module--list">

		<?php 
    if (_get_sub_field('mtm_show_taxonomy_links')) {
        mtm_terms_from_taxonomy_links(get_sub_field('mtm_list_archive_taxonomy_links'));
        // output taxonomy
    }
    $list_query = mtm_taxonomy_query_sub('list');
    $taxonomy = mtm_acf_taxonomy_sub_property('list', 'taxonomy');
    $terms = mtm_acf_taxonomy_sub_property('list', 'slug');
    if ($list_query->have_posts()) {
        global $post;
        $org_post = $post;
        // save this in case we are inside a nested query/post object
        while ($list_query->have_posts()) {
            $list_query->the_post();
            mtm_get_template_part('mtm-content', 'list-view');
        }
        $post = $org_post;
        // reset to original query
    }
    if (_get_sub_field('mtm_show_view_all_link')) {
        ?>

			<a class="mtm-view-all-link" href="<?php