Reply To: get_field('my_field_name', $post->ID) returning string on author.php

• John Huebner

• February 1, 2021 at 2:50 am

@laju is likely correct. The value that your getting (a string value of what appears to be an ID) indicates that you’re using some type of relationship field and your pre_get_posts filter is interfering with the query that ACF is doing. The following should be added to all pre_get_posts filters that are designed to filter the main query.

if (is_admin())  || !$query->is_main_query()) {
  return;
}