Adobe Digital Editions - not all ebooks are displayed on iPad

[Asli5FF9]

Hello, I have the latest version of Adobe Digital Editions installed on my Mac. I have an ebook purchased in October 2020 that I can read there. Yesterday I have downloaded Adobe Digital Editions on iPad and although I use Adobe ID on both, the book is not synchronised and cannot be seen on iPad. 

Looking forward to hearing back!

Asli 

[runchickyrun]

I have the same problem. I can only see 27 out of 197 books on my iPad vs Mac. Latest OS, and hardware. Worked fine on older hardware & OS, until they were replaced in Jan. It's not the newest OS, as I've not been able to get the rest of my books to show since summer, when I got ADE installed on both.

No idea what the problem is. Just spent 2 hours going through every possible setting on both devices. And now I'm going to look at finding a way to copy from Mac to APP. Shouldn't be this difficult.