You might have to use the Post Object field instead and then maybe do something like:
<?php
$post_objects = get_field('post_objects');
if( $post_objects ): ?>
<?php foreach( $post_objects as $post_object): ?>
$postID = $post_object->ID
<a href="<?php echo get_permalink($postID); ?>">
<?php echo get_the_title($postID); ?>
</a>
<?php endforeach; ?>
<?php endif; ?>
