"the product that was requested doesn't exist" getting this error when trying to Place order for a product with custom options... Error is on the checkout at the top of the payment methods block... Why?
Also in dev tools:
POST: http://www.xxx.co.uk/rest/default/V1/guest-carts/PVwNcSVo8n5C0wJLdBDA9jNhkHGXzOgc/payment-informatio... 400 (Bad Request)
The error even presents itself when I try and press an order from admin
Have tried the usual.. flush cache reindex.. check missing sku in the db table etc...