I see all sorts of publisher booboos in Kindle books. I think a lot has to do with how they create the images/books. Amazon could in theory have a book creator that would solve most of the issues, but instead they leave a lot of discretion up to the publishers. I've got a book with lots of maps that were so low resolution that I cannot read any of the text in them. I think they probably used tiny postage stamp sized images and those were enlarged during the book compiling stage. All the images in that book are terrible. Amazon gave me a refund on it though. But yes, images have been an issue for some time now, though most books seem to get them embedded correctly.