Yea theres a few issues with ACF:
1. It seems to be explicitly breaking when memcached is enabled.
2. There seems to be no good or official way to serialize a posts variety of fields. Each field is an individual piece of post_meta. It would be really great if ACF just serialized all an objects fields or if it gave us the option when building out fields to say fields a b and c while visually different fields should be stored on one post_meta entry.
Yea I’m having the same exact problem. Any ideas?
Is $field the search term entered into the relationship search box I tried
function acf_relationship_content_search( $args, $field, $post ) {
$args['s'] = $field;
return $args;
}
add_filter('acf/fields/relationship/query', 'acf_relationship_content_search', 10, 3);
to include the field in the wider search for post_content but no dice.
Any help anyone can give me would be greatly appreciated.
Thanks,