Woocommerce update = broken product page gallery

Hi,

Im using a child theme of virtue and have jsut installed the latest Woocommerce update and since then the Product Gallery on the product pages has not worked properly –

https://hand.handmadecrafthouse.co.uk/?product=candle

The lower photos just to be just teeny tiny under the main picture – as it now is – urgh!

Could anyone give any help?