Variants Not Updating Anymore

Hello,

I have recently added a few products to the store at the below link

hairificwigs.com.au/index.php/online-shop/new-stock

When you change the variant (colour) to something else the headline doesn't change and when added to cart does not add the selected variant to the cart. This works normally for other product lines except these 3 newly added.

Please advise how to fix this.

Cheers
Matt

Update: This is only affecting Google Chrome - appears to work ok in internet explorer

actually - it appears it was a browser cache error - please ignore