Reply To: Issue with result group by meta key

Sure.

1. First restore the original plugin code of the results file.
2. Then simply use this as the advanced description field (restore to default):

{descriptionfield}

3. Plus use this custom code in the theme/child theme functions.php file:

add_filter('asp_results', 'asp_show_dates_in_res', 10, 1);
function asp_show_dates_in_res($results) {
  foreach ( $results as $k=>&$r ) {
      // Get the dates
			$event_date_from = date('F d, Y', strtotime(get_post_meta( $r->id, '_event_start_date', true)) );
			$event_date_to = date('F d, Y', strtotime(get_post_meta( $r->id, '_event_end_date', true)) );
			$event_time_from = date('g:i a', strtotime(get_post_meta( $r->id, '_event_start_time', true)) );
			$event_time_to = date('g:i a', strtotime(get_post_meta( $r->id, '_event_end_time', true)) );
      
      // Date part
			if ($event_date_from == $event_date_to) {
				$add = '<p class="event-date">' . $event_date_from . '</p>';
			} else { 
				$add = '<p class="event-date">' . $event_date_from.' - '.$event_date_to . '</p>';
			}
      
			if ($event_time_from == $event_time_to) {
				$add .= '<p class="event-date">' . $event_time_from . '</p>';
			} else if($event_time_from == '12:00 am' && $event_time_to == '11:59 pm') {
				$add .= '<p class="event-date">' . 'All day' . '</p>';
			} else { 
				$add .= '<p class="event-date">' .  $event_time_from.' - '.$event_time_to . '</p>';
			}

			$add .= '<p class="event-desc">' . $r->content .'</p>';
      
      $r->content = $add;
  }
  
  return $results;
}

That’s it, this will work with future updates as well.