The upgrade to 18.104.22.168 from 1.3 went smoothly for us. We’ve been taking customer orders on the front-end without any issues. Today we tried to place our first admin order-- and it won’t submit.
Using the “Submit Order” button on the Admin New Order form with a required fields (credit card number, etc) missing, the page reloads with the field highlighted that we’re missing-- but when everything is complete and filled in, the “Submit Order” button will not submit the order. The button just isn’t doing anything.