Yes, it has the same problem but instead of taking today's date it is taking the date of last invoice. I opened the sample file and went ahead to create an invoice. The last invoice was dated 23-12-15 and tried to change it. Every date I input, it is switching back to 23-12-15 before saving or moving away from the date field. I opened one of the older invoices dated 23-12-12 and same thing, any date I input it is switching back to 23-12-12 (the original date). I tried to create a new invoice with a 23-12-30 or 23-01-30 date, but it does not let me put any date other than 23-12-15.
So, in summary, the new invoices take the date of last invoice, 23-12-15 and old invoices date can not be edited to another date, it is switching back to the date they were already saved at.
