Reply To: How to exclude certain media files from the search?

Sure!

Can you try this variation maybe:

add_filter("asp_query_args", "asp_query_args_change", 10, 2);
function asp_query_args_change($args, $search_id) {
	global $wpdb;
	if ( $search_id == 1 ) {
		
		$include_ids = array(1954, 1955, 1956, 1957, 1958); // Media file IDS to include
		
		// No change below
		$ids = implode(', ', $include_ids);
		$args['attachment_query']['where'] = "AND $wpdb->posts.ID IN($ids)";
	}
	return $args;
}

This one has the global database variable request so if that was the issue, then this may change something.