With ‘Use Inventory Costing Method’ set to Leave and ‘Use Order C$ on PO’s and Vouchers’ turned on, list an item on a voucher who’s Invn C$ is different from it’s Order C$. The voucher will of course take Order C$ as the Voucher C$. Update the voucher, then reverse it. The reversing voucher will use Invn C$, not Order C$, and the voucher total will not match the original document. I tested this rather extensively in 8.52 with the latest core from IP’s site, and it only seems to be a problem when using Leave as the costing method.