Thanks James
To confirm, the terms are being saved, see here:
http://cl.ly/3k3v062y240J
When using this example – https://www.advancedcustomfields.com/resources/taxonomy/ – like so:
<?php
$terms = get_field('key_tasks_list');
if( $terms ): ?>
<ul>
<?php foreach( $terms as $term ): ?>
<h2><?php echo $term->name; ?></h2>
<?php
echo '<pre>';
var_dump( $terms );
echo '</pre>';
endforeach; ?>
</ul>
<?php endif; ?>
I get NULL returned.
Thanks