Revision:
function text_area_shortcode($value, $post_id, $field) {
if (is_admin()) {
// don't do this in the admin
// could have unintended side effects
// revision: return $value because we don't want to miss on the textarea content
return $value;
}
return do_shortcode($value);
}
add_filter('acf/load_value/type=textarea', 'text_area_shortcode', 10, 3);