Purchase Order

Hi, My situation here is that I was editing a Purchase Order in AR and when I was done I hit record and I was expecting a dialogue box that will usually says that the PO was not emailed or printed yet but when I received the dialogue box it a different message was posted. It said that the PO was being removed and I got no choice but to hit the OK button because its the only button that goes with the notice. When I checked the list of POs the PO# that I was just editing got a status of "Invoiced" but when I check the invoice list, there's no record of it being posted. I even checked the Payments Journal and chose  the vendor and there's nothing to it. I could not remove the "Invoiced" PO nor I have anything to reverse any invoice. My question is will this affect anything or is this just a bug in Simply? Do I have to do anything before creating another Purchase Order?