Show different currencies in cart and checkout page

Hi,
I’m using a module “Currency per Product” of the Booster for Woocommerce plugin to show different currencies in check out.
But I don’t know why, the USD is not showing.
Can you help me to know what is happening?

In the product page, the currencies is appearing fine. But in the cart and checkout, not.

You can see the example at this page:

Peru – Lima, Machu Picchu, Titicaca