WooCommerce lightbox product Thumbnails not displaying in preview box?

We are using wordpress 3.9.1 and Woocommerce Version 2.1.12.

The problem that we are experiencing is that when we go to a single product page to view a product in woocommerce and select a thumbnail, the thumbnail does not show up in a previewbox. The thumbnail opens in a new window.

What I need is a workaround to get the thumbnail to show up in a preview box.

Any help would be appreciated.