currency and decimals not showing for discount

-- HikaShop version -- : 5.1.5
-- Joomla version -- : 5.2.5
-- PHP version -- : 8.3

Hi,
On the site we used the advanced price display option in the category listing.
We have a discount on a product with a fixed amount.

What we now see is that the discount amount is not having the currency in front and decimals.

Did I miss a setting somewheren?

The discount we wat is to display like € 6,00 ... now it's just 6

Thanks, looks perfect !!