Firstly, thank you for your reply.
I have just realized that when you add the product to the cart, the attributes e.g. size, colour, are not showing in Checkout either. The only information is the title of the product e.g. 6071 Outback Oilskin Childrens Vest, Sizes XS to XL × 1
As suggested, I disabled all other plugins, but this doesn’t seem to have made a difference.
I am currently using Version 5.7.0 (WooCommerce)
