DMT - Cash Receipt/Payment

Hi everyone, trying to DMT import some payments in AR Cash Receipt but am getting the following error:

Company 165086 GroupID TESTDMT CheckRef 100582 Table: CashHead Msg: Cannot update Invoice Number.

Am I missing something in my upload template?

I’ve played around with it, and even if it does create a payment the amount is not applied at all.
Tried similar formats in both the Payment an Cash Receipt Combined menus.

Thank you!