Invoice Numbering Issue

[kwood]

Hi, I am having problems with my invoices where they are being generated with an invoice number, but the number is not being saved. I have to manually go into the 'Options' tab and enter the invoice number and save it. Is there something I can do to rectify this? This never used to be a problem, so I am not sure what has happened. Many thanks

[wtools]

What do you mean by the number is not being saved? You can't see it in the list of the invoices?