polylang compatibility not so good

Hi! We have tours on the website which are available in English and Hungarian. When you add a tour in English to the shopping cart and change to Hungarian on the checkout page, the price in euros is correctly changed to HUF. However, when we add a product to the basket in Hungarian and change the language to English on the checkout page, the price in EUR (Product’s regular price) is not displayed, but the Ft sign is changed to EUR, but no change is made.