Prestashop doesn't display prices correctly - need a fix.

I have a multi currency store with default currency being PLN. For other currency I have set specific prices (don't use the currency conversion). It works fine except for products with attributes. For example t-shirt available in different sizes. The problem: on the product's page it shows an incorrect price for all currencies except the default. On the category listing everything is fine. Please check out screenshots. I need this fixed.