I saw on another of your theme’s forums a similar problem… (http://snstheme.com/forums/topic/kanta-theme-does-not-appear-to-handle-iterms-with-options/)

I can’t add custom options to products. The option select doesn’t show nor does the add to cart. http://spinov8.com/SNS_demo/handcycles/top-end-force-cc-handcycle-test2

Products that were previously imported work, but we can’t create any new products with custom products.

I was just wondering, since someone else asked if it was determined to be theme related?