Hello,
The product page and the checkout use the same API.
In the product page, the exchange rate between the shop’s default currency (WooCommerce -> Settings -> Currency), and each enabled cryptocurrency is used.
At checkout, the exchange rate between the order’s currency and the user’s chosen cryptocurrency (billing cryptocurrency) is used. The order currency should be the shop’s default currency.
The billing cryptocurrency is passed via a POST variable. I’m thinking that maybe some other plugin prevents POST variables from being passed unfiltered. Could you please:
1. Try an order again with all plugins disabled except the ones necessary and with caching disabled?
2. What exactly do you see on checkout? Is there an error message? Could you show me a screenshot if there is?
thank you
with regards