Receive Payment in Different Currency via Import/Export Wizard

AccountRight Premier AU 2026.7.0, build 2026.7.1.21. Multi-currency is enabled.
NZD exists in Currency List.
Customer has default currency NZD and the invoice is an NZD invoice. 
Receive Payments imports successfully when Currency Code is omitted, but defaults the payment to AUD.
When Currency Code = NZD is included, the import fails with: "SetProperty: Invalid Property Name: CurrencyId for type: MYOB.Huxley.API.Entities.IReceivePaymentEvent."

MYOB’s current Receive Payments import specification lists Currency Code as a supported Premier field.

Has anyone been able to get this to work. I've tried every possible combination I believe.