Not working here: http://dev.kimkaps.com/product/kimkaps-scrub-caps/tricky-treats/
Could you update your premium version of the WooCommerce Variation Swatches plugin?
The current version of swatches plugins is the following.
Variation Swatches for WoooCoommerce – Version 1.1.19
Variation Swatches for WooCommerce Pro – Version 1.1.18
Please make sure you are using the same version and let me know your reported issue has been fixed or not in this latest update?