Hi HDG
Thanks for the clarification. Could you try to clear the AccountRight cache, this could help with odd behaviour of the programme.
If you are still experiencing this issue, I would need to know how you are processing these invoices that are doubling up in order for me to investigate this further. For example this setting doesn't work when you create invoices in the browser, and also we have seen invoices doubling up when converting the same quote several times.
As for the customer cards you can only delete a card if it has never been used in a transaction. If it has been used, you will not be able to delete it, even after deleting any associated transactions. This ensures you keep a history of cards used in transactions for auditing reports. Instead of deleting, you can make the card inactive or combine the card with another one to remove the old card from your lists.
If you have marked these cards as inactive, where are they appearing in your file? What is the exact information that is missing from the more recent cards? Does it happen to all of them or just a few?