Some Images fail to load after latest update

We use woo commerce and since the last update most of the images on the site fail to load. I disabled (one by one) all plugins and the only plugin that is interfering is Better WP Security.

So I had to disable the security to actually let the customers see our products. Can you advise what could be causing this? Can a particular section of BWPS be turned off? Is this a problem just for us?

http://wordpress.org/extend/plugins/better-wp-security/