Set price not saving in product page

I have paid for the pro version.
I have set ‘Fixed Price’ to be on under the general tab.

In the product listing, I am able to enter the set prices for the 3 currencies, but after I press ‘update’ the additional currency prices and removed.

When testing the product, the fixed prices do not show, and the prices for additional currencies are being calculated using the exchange rate, not the fixed price as entered in the product listing.