I just updated the ADE app on my Mac to the latest version (4.5), which is supposed to sync librairies between device registered with the same Adobe ID. When updating the app, as it reloaded, my Adobe ID was still signed in, my computer authorized, etc. Two books I check out of my library are still there (authorized under my Adobe ID). However, when I open the ADE iOS app on my iPhone (and authorize the device with my Adobe ID account), nothing shows up. Not the library books, not the PDFs, not my public domain epubs that are in my Adobe Editions mac app. Am I missing something ? The apps are supposed to sync, right ?
I have the same problem