WP Query comments_template() not appearing

Hello there,

I have been trying to make WPDiscuz appear through Ajax on my single.php without success. Somehow, when loading comments_template() through WP Query, WPDiscuz doesn’t appear and the comment system reverts to the native theme.

Is there anyway to fix this? Thanks for your help.

My code :

$qry = new WP_Query( array( 'p' => 1 ) );
                if ($qry->have_posts()) {
                  while ($qry->have_posts()) {
                    $qry->the_post();
                     global $withcomments;
                     $withcomments = true; 
                     comments_template();
                }
               }