I was able to find the issue. In my child functions.php file I had the following code which when removed, fixed the issue.
//The remove Related Events from The Events Calendar Pro
add_action( ‘init’, ‘remove_related_events’ );
function remove_related_events() {
$callback = array( TribeEventsPro::instance(), ‘register_related_events_view’ );
remove_action( ‘tribe_events_single_event_after_the_meta’, $callback );
}