Since not one penny of this $1,615.32 has appeared in my account, I don't think the borrower actually made the payment. There's no payment in processing, etc. It looks like total forgiveness of the principal by Prosper, without my consent (or notification). The Payment Status for this loan says "Charge-off", and below that, "Paid in full".
I suggest that other lenders sort through their notes, and look twice at those which are a "Charge-off, Paid in full". Let's see if Prosper is settling (forgiving) any other loans. (This is the only loan I have like this, for now.)