Reply To: Tablepress table not showing preview

That means the shortcode is probably not registered at that time of execution. Maybe a solution with a custom code may work, but I cannot guarantee that either.

Try adding this custom code to the functions.php in your theme/child theme directory. Before editing, please make sure to have a full site back-up just in case!

add_filter( 'asp_results', 'asp_force_execute_shortcodes', 10, 1 );
function asp_force_execute_shortcodes( $results ) {
	foreach ($results as $k=>&$r) {
		if ( isset($r->post_type) ) {
			$r->content = apply_filters('the_content', get_post_field('post_content', $r->id));
		}
	}

	return $results;
}