Express Checkout on Product page not getting the values of the variations created by WooCommerce Product Add-Ons and Gravity Forms Product Add-ons

[ChristianAF]

Describe the bug Express checkout on the Product page seems not to be compatible with WooCommerce Product Add-Ons and Gravity Forms Product Add-ons

To Reproduce Steps to reproduce the behavior:

1. Install and activate WooCommerce Product Add-Ons or Gravity Forms Product Add-ons
2. Set up some variables that add some value to the product
3. With the user go to the product page and select the variable that adds value to the price
4. Click on the Express checkout of Amazon Pay and log in to the account
5. The thank you page doesn't show the variable that was added by user

Expected behavior A clear and concise description of what you expected to happen.

Isolating the problem (mark completed items with an [x]):

• [x] I have deactivated other plugins and confirmed this bug occurs when only the extension is active.
• [x] I can reproduce this bug consistently using the steps above.