You don't describe what you mean by seamless switching or "they don't talk to each other". You did say that other books are "seamless" on your Kindle and it's apparently a problem with just one book. Try downloading that book again to see if the problem was a corrupt download. If the problem persists then the anomalous book may simply be formatted differently than the other books that you have.
If you were referring to Amazon's immersive reading where you can listen to a book and a highlight will follow along in the printed text. That feature is not supported on the PW4.
|