Is anybody else having the issue where there are multiple copies of each chapter in a Mobi conversion of a Kindle book? After decrypting each Kindle book, I convert it to a Mobi file and then upload that Mobi file to calibre. Upon reading, I see at least three copies of the same chapter before I can access the next chapter, OR after reading a few chapters, I then get a repeat of those same three chapters. It's maddening!