When I add a new image to the gallery, I have a semi-automatic process in place to create a product from that image. It’s worked really well up until now. For reasons that I’m yet to get to the bottom of, I’m no longer able to convert new images into products. This makes no difference to visitors of the site at the moment, and it doesn’t prevent sales of existing images, but it does mean that new images added from now onwards can’t have associated purchase options available to them. I’m working on this at the moment. The ideal situation will be that I’ll solve whatever it is that has caused the current process to fall down. The alternative will be to code a different method of product creation, which will take a little longer, but it’s do-able.