Reply To: Filters not responding unless search bar is used first

Hi,

Thank you very much for the details, it helps a lot!

From looking at the front-end, I suspect the minimum character trigger is set to 3 or more characters instead of the default 0, can you please make sure to set it to 0 here: https://i.imgur.com/RT2xrgb.png
That will resolve the issue.

As for the publications, while there is no option for that, it should be still possible with a small custom snippet:

add_filter(
	'asp_results',
	function ( $results ) {
		foreach ( $results as $r ) {
			if ( $r->content_type !== 'attachment' ) {
				continue;
			}
			$parent_id = wp_get_post_parent_id( $r->id );
			if ( !is_wp_error($parent_id) ) {
				$r->title = get_the_title($parent_id);
			}
		}
		return $results;
	},
	10,
	1
);

Try adding this code via the Code Snippets plugin or to the functions.php file in your theme/child theme directory – make sure to have a full server back-up first for safety. For more details you can check the safe coding guidelines.