Variable Products - WooCommerce

Hey all, I’m sure i’m being stupid but I have tried everything! Including removing all plugins and working back wards…

My Varible Products won’t work but one price products do, any ideas?

Like to one product I have:

Also just so you know I am changing were the link to you guys is rather than the bottom. I love your themes and would appreciate this help to get the products working

I see that you have got it sorted. What causes this issue in the first place?