Dear Tony Young,
It is not a bug.
This module is displayed sub-categories with the descending order.
You can change this order by going to "modules\mod_sj_zoo_categories_ii\core\zoocategoriesiireader.php", finding:
public function getChildCategories($catId,$titleMax,$app){
$categories = array();
$query = "
SELECT c.id, c.name as title, c.alias, c.description
FROM #__zoo_category c
WHERE
c.application_id = $app
AND c.published = 1
AND c.parent = $catId
";
=>
public function getChildCategories($catId,$titleMax,$app){
$categories = array();
$query = "
SELECT c.id, c.name as title, c.alias, c.description
FROM #__zoo_category c
WHERE
c.application_id = $app
AND c.published = 1
AND c.parent = $catId
ORDER BY c.ordering
";
Thanks