WooCommerce – The product remains in the cart after paying. Using Timber, Twig and WooCommerce

We are experiencing a problem with our WooCommerce subscription website where a product remains in the cart after completing the purchase. that is to say

  1. User adds product to the cart.
  2. The user follows the payment process
  3. Purchase process successfully completed
  4. When you return to the cart page, the product is still there.

This problem is almost identical to this issue published by @ 3×5
since we are also using Timber, Twig and WooCommerce.

Does anyone have any idea what might be causing this? @ 3×5 Did you find any solution / s?

Thank you