I received a payment from a customer for 2 invoices, applied the payment to the invoices in QuickBooks, and in QB the customer balance shows as $0. However, in Method the customer still showed a balance due in the customer list. I ran a full sync just to be sure. The customer center shows all of the transactions, but apparently was not applying the payment to the invoices for this single customer. After exhausting all other avenues (more syncs, refreshes, etc.), I happened to click to advance to the second page of the customer list in customer center. When I clicked back to the first page, the customer balance was gone. Is this a sync or refresh bug somewhere?