When I mark upload as required and user tries to submit product without files it reloads the product page rather then stop submission. This leads to frustration as user needs to fill entire order again. Any chance you can change it so it shows error without reloading entire page?
I would need your email address to set up an account for you as my shop is only available for looged in users. My biggest issue is with behaviour I described in first post which I believe has nothing to do with my website. It is plugin behaviour?