It was working well until the latest update. For some reason all blog articles now have Type: http://schema.org/Review; Type: http://schema.org/Rating; Type: http://schema.org/Product and Type: http://schema.org/Offer. But it's not a commercial web-site - it's a blog. What could go wrong? Before that it was always schema.org/Article. In the article editor a widget Turn On/Off review mode is OFF.