Not passing price from variations into designer

Hi guys,

Just purchased, love the product :) When I select customisation methods using selectable attributes on the product page for woocommerce then click customize the price selections are not dynamically updating in the fancy product designer UI. 

Here are some screenshots...

Selection of customisation:

After clicking customize - The price doesn't update in bottom right hand corner:

Clicking add-to-cart adds the correct price into the cart but does not show the element of £15 for an image added while in product designer UI:

Doesn't show the element from FPD in cart either:

Can you advise where I'm going wrong?

Thank you.