Adobe Digital Editions Synchronisation of Bookmarks and notes does not work between devices

Hi,

I am reading one Book (.acsm by Wiley) on diffewrent devices (<6) while reading I make notes with the Digital Edition tools and set bookmarks. When I pick up reading on an other device the notes and bookmarks do not appear. What am I doing wrong?

Each Digital Edition install on the different devices is authorized with the same Adobe ID.

Looking forward to your reply.

Claudia