Add reference ID field is covering the Ad details, if there is no text field displayed after Ad details.
I played with code, but I'm no programmer, but if displayed a dot in acf-content.php line 87, just below
$output_fields .= '</ul>';
$output_fields .= '</div>';
$output_fields .= '<div>.</div>'; //added line
It seems to solve the problem only I don't like the dot being displayed. Any suggestions?