Invoice not working

[somanypostcards]

I have a buyer who won a number of auctions for which I sent an invoice.  The buyer said the invoice wasn't working and asked me to send another invoice.  That also failed, as when the buyer when to pay just one item was billed for instead of all the items the buyer won which were on the invoice.  Anyone else having this problem?

[somanypostcards]

When I select create invoice and check all auctions won, the invoice shows all 5 postcards but says 0 items in invoice.