Sage 100 Advanced v2014 SP3. Sales Journal for one Sales Order invoice batch shows no tax amount for invoices with taxable Sales amount. The first half on the next day's batch is the same. All of these invoices printed with the tax on the invoice. In the invoice there was no sales tax detail line. I changed the tax schedule to something else and changed it back and the sales tax line shows up in sales tax detail and the invoice is corrected. This is the second time a block of invoices have done this. Anyone have any idea how this could happen. TIA