[Joliet Jake]

Does KTE use a different method for transferring covers than Kobo Touch, Kobo Utilities, etc? Or does Kobo ignore metadata covers for Kepubs but not Epubs?

I used to use Kobo Touch and, at the time, I would use metadata to "attach" covers to my sideloaded books. Then I would transfer them to my Kobo. The correct covers would appear.

Well recently my Kobo "went on strike". I had to update it, log out, log in, etc, and the problems generally went away. However, I had a lot of problems with covers. Some books didn't have covers, and some had "old" covers. The books weren't using the covers added using metadata.

I made sure to use the exact same settings in KTE as in Kobo Touch.

So, I converted those Epubs into Epubs and that solved the problem, as the first page was replaced by the metadata cover (or even a new first page was added), except there's a few books with DRM issues. I can't edit them and so they keep the old covers (or lack of covers). One set of books were definitely purchased without DRM but I'm getting a DRM error on them anyway. (This does not prevent me from reading the books either on Calibre or the Kobo. I just cannot edit them.) Those books actually have the covers inside, but on page 3 (page 1 is blank, and that's what shows up on the Kobo).

In addition, I cannot find "Polish". I am not sure if that's a separate plugin but I think it's native to Calibre, so I'm probably just looking at the wrong menu. (I tried modifying the menu but I didn't know which menu needed editing so I gave up.) I don't know if Polish would make any difference.

Edit: Davidfor answered this question on another post of mine.