A couple of months ago I edited the sales quote form default to include vat as default because not every quote comes from inventory which would include the vat as default.
This works perfectly, but I have just noticed now that quite a few of my sales quotes are all on the same day - Oct 17 (which is when I updated the form default). I have just tested it with a new business and it’s clear that if you edit a form default (say vat) the form defaults to the date that you edit the form default. You actually have to click the x to remove the date.
Hope that makes sense.