Invoice in Euros - Currency exchange rates

Henrik

I send invoices in Euros and the exchange used by wave is different than actual exchange rate used for the payment. So invoice amount does not match payment amount. In the past I've used as asset account, called invoice payment to record the difference, like you would with bank fees for an international transfer.
But the option, in the transaction screen, where you, in the past, could record an income as "payment of invoice in wave" does not work anymore, the popup window is blank? It used to show all unpaid invoices...
Is there another way to handle this?