E-books have some serious quality control issues. When you find a bad one, consider complaining to the publisher (but CC the retailer). It’s the publisher that’s responsible for the quality of their product and the effect on their brand. Publishers have gotten away with minimal branding for a long time — consumers are barely conscious of what company produced the book they are reading. But the severe quality issues we’re seeing in e-books is bringing up the question, “What *&%#$# made this piece of ^@#$?”
A publisher did. A publisher you should threaten not to buy from again. Tell them you’re paying attention, remind them that you are actually quite capable of choosing to spend your money on e-books built by their competition.