In A/R, entered an invoice twice in December, and subsequently voided one of the occurrences during month-end review.  Open A/R report and general ledger in balance at year-end, both correctly showed one occurrence of the invoice as open.  Customer check paying the invoice received and we're trying to post that cash receipt.  In A/R - Post Receipts, both occurrences show as voided, so can't post a receipt against the invoice.  Accounts Receivable Open Invoice Report still shows invoice as open.  How do I get one of the occurrences to not show as voided in Post Receipts?