When we create a price list item from the Product Form, the currency won't populate. Therefore, we can't save/create the price list item.
But when we create the same price list item, but we go throug a different path (price list rather than product), everything works as expected. It's not that big a problem, but our users find this annoying.
Everything seems to be configured accordingly. Default Currency for users, Currency is set in the Product and in the Price List.
See demonstration here: https://youtu.be/JcmIRYBIyEM
That weird since we have other organization for which this does not occur.