A few months ago I changed the
Use Categories Path for Product URLs to no to avoid duplicate urls.
Products had .html at the end of the url with or without the category. At this time, I do still have the .html sufix enabled but I've noticed that the new products I upload to Magento doesn't have it.
What I would like is to show all products with .html at the end and of course, without the category on the path.
A screenshot of the configuration as it is at this moment: