Customer Invoice skips Open state
Deployment setup is Odoo 9 community on Debian 8. When a customer invoice is created from Accounting-Sales-Customer Invoices-Create Button, first it is a Draft. If we only save and not validate, the invoice status Draft is shown in the list of Invoices. If we open it and click on Validation button the invoice gets the correct sequential number, but goes to status Paid! No changes into Workflows has been made since original installation! Clicking back on the list of invoices issued its status is Paid! Any clues why the workflow skips Open state!? If we go to Accounting dashboard, there are no outstanding invoices for payment!