I do realise that there is a chapter listing on the new Sonos app for my Audible books. However currently they seem to be non-functioning as when you tap the play button next to each chapter, the speaker just simply plays the audiobook where it left off or just keeps randomly changing from chapter to chapter without any real playback on the speaker. 
 

It would be great to get the chapter list playback up so that one doesn’t have to click the next button like 25 times just to get to chapter 26 from say chapter 1.