vDesigner causes Add to cart button to disappear?

Solved - Joomla disables add to cart buttons on category layout if custom field is set.

After adding the custom field - Product Category view page "add to cart" does not show.
On this page pilot-sandbox.cloudtestserver.com/writin...ment/ball-point-pens
Product title: Downforce and Camo have custom vDesigner field set, the other do not. The others show add to cart. After removing the custom field I get my buttons back. Is loading Jquery, Mootools or some other conflict? thanks