[WordPress] Use the plugin "The Grid" to display ACF relationships

functions.php

<?php //remove this

function my_query_args($query_args, $grid_name) {
	if ($grid_name == 'Related Treatments') {
		$treatments = get_field('related_treatments', get_the_ID(), false);
		$query_args['post__in'] = $treatments;
	}
	return $query_args;
}

add_filter('tg_wp_query_args', 'my_query_args', 10, 2);