Do loop work?

Hi, I am trying to use this code that works when I don’t use the plugin but doesn’t return any results using the snippet shortcode. I think maybe loops don’t work but I can’t tell from the docs. Sorry if this has been covered before

?>

<div class=”btn-group”>
<button type=”button” class=”btn btn-md btn-dark dropdown-toggle” data-toggle=”dropdown” aria-haspopup=”true” aria-expanded=”false”>
Dropdown
</button>
<div class=”dropdown-menu”>
<?php
$args = array(
‘post_type’ => ‘product’,
‘posts_per_page’ => 12,
‘tax_query’ => array(
array(
‘taxonomy’ => ‘product_visibility’,
‘field’ => ‘name’,
),
),
);
$loop = new WP_Query( $args );
while ( $loop->have_posts() ) : $loop->the_post(); global $product;
?>
post->ID ) ?>”><?php echo esc_attr($loop->post->post_title ? $loop->post->post_title : $loop->post->ID); ?>
<?php endwhile;
wp_reset_query();
?>
<div class=”dropdown-divider”></div>
Separated link
</div>
</div><!– end button group –>