Storytel always start from the beginning

The Audiobook don't synchronize with the Storytel server. If I am away from my Sonos system and listen to my book on the Storytel app. When I come home and turn on the book on Sonos it doesn't continue, it starts from the beginning. The same happens if I in the middel of a book switch over and play some music. When I go back to the book it start from the beginning. It worked fine with the old software/app.