[Ripplinger]

Last week I finally ran into a new Amazon book that I couldn't remove DRM, but found a way by upgrading Calibre to 8.11. I had been using Kobo FW 4.24.15676 and Calibre 4.23, which I loved all aspects of that combo and I didn't want or need to upgrade further, DeDRM worked flawlessly for all books and zero issues anywhere. It was perfect for me with all the bells and whistles I want.

But now with the new Calibre 8.11, when I transfer these newer problematic books onto the reader with 4.24.15676 firmware, the books open fine and I can read them. But they will not appear on the home screen, nor will the series show on the homescreen. Since I read only 1 book at a time, it will generally stay open, but it's annoying to have to go dig through the books for it when it might close for whatever reason, and I just don't like that it's no longer working as it should.

So before I get into trying to restore old Calibre to fix the reader issues (and then I can just use the newer Calibre on a 2nd PC, which is most likely how I'm going to do it), are there issues between old Kobo firmware and newer Calibre versions like this?