Variable product – Add to cart hidden – Uncaught TypeError: Cannot read property

I’ve recently upgraded WC and now any products that have Variations don’t have an “Add To Cart” button. I get the error “Uncaught TypeError: Cannot Read Property” when I look in the Browser Console. I’ve put the detailed error below.

Here’s my version info:
WC Version: 2.0.9
WC Database Version: 2.0.9
WP Version: WP 3.5.1

Uncaught TypeError: Cannot read property ‘1372’ of undefined add-to-cart-variation.min.js:3
(anonymous function) add-to-cart-variation.min.js:3
v.event.dispatch jquery.js:2
o.handle.u jquery.js:2
v.event.trigger jquery.js:2
(anonymous function) jquery.js:2
v.extend.each jquery.js:2
v.fn.v.each jquery.js:2
v.fn.extend.trigger jquery.js:2
(anonymous function) add-to-cart-variation.min.js:3
v.event.dispatch jquery.js:2
o.handle.u jquery.js:2
v.event.trigger jquery.js:2
(anonymous function) jquery.js:2
v.extend.each jquery.js:2
v.fn.v.each jquery.js:2
v.fn.extend.trigger jquery.js:2
v.fn.(anonymous function) jquery.js:2
(anonymous function) add-to-cart-variation.min.js:3
(anonymous function)