Compatibility with Facebook Catalog / Pixels

I am trying to integrate my woocommerce store with Facebook Catalog / Pixels and having difficulty with products that have custom fields from this plugin.

Using the default setup this is what happens:

1. Catalog syncs as well as all variations
2. User can choose product in Facebook and select variations but ‘custom fields’ do not show
3. User clicks ‘Checkout’ from Facebook and it takes them to the basket page
4. The basket is empty for products which are using this plugin

Does anyone have any experience with Facebook Catalog that could provide some help?

2 ideal outcomes:

1. Facebook has the custom fields added somehow, user completes them there and the basket loads correctly

2. Facebook doesn’t send the products to the basket, and instead takes them to the product page where they can then view and complete these custom fields

Any help with this would be really appreciated

Example:
Facebook store:
https://www.facebook.com/pg/OddBulls/shop

Website:
https://www.oddbulls.co.uk

The page I need help with: [log in to see the link]