Why does Kobo keep re-downloading covers to some books I've already downloaded?

[Cactus Chef]

This has been a problem for some time, but I've never bothered to raise a thread about it until now.

There are some books in my library (always purchased from Kobo, never sideloads) where even after I have already downloaded the book to my local device, the Kobo will try to download the cover again the next time I turn my device on or it tries to sync. I have never been able to figure out rhyme or reason as to why, but it is always specific books in my library.

It's not really a problem, per se, I can still read the book fine. But the obnoxious thing is that if it happens to a book I'm currently reading and the cover re-download is not successful for whatever reason before the device goes to sleep, then I'll come back to find that the book cover on my device lockscreen has reverted to the generic Kobo EPUB image, which is quite annoying.

Can anyone shed some light on what's going on here? Does Kobo store ebook covers for books downloaded from their store somewhere other than inside the ebook itself, such that it feels the need to keep pulling it down?

[HLS]

I see it on my end as well. Maybe there were some sort of minor update. They are pushing through.

[Haesslich]

I'll bet it's a corrupted database. I've seen that happen before, where it won't store that data and keeps trying to sync it.

The only way to fix that was a factory reset and downloading it all from scratch.

[JSWolf]

Originally Posted by Haesslich

I'll bet it's a corrupted database. I've seen that happen before, where it won't store that data and keeps trying to sync it.

The only way to fix that was a factory reset and downloading it all from scratch.

There is another way to fix that in you use calibre and Kobo Utilities to back up the database. That is to restore the latest backup database and then reboot.

[Cootey]

Originally Posted by Haesslich

I'll bet it's a corrupted database. I've seen that happen before, where it won't store that data and keeps trying to sync it.

The only way to fix that was a factory reset and downloading it all from scratch.

I’d try More>Device Info>Repair first before a factory reset. Then I’d try logging out of the Kobo first, then logging back in before a reset. Sometimes that’s all you need to do. If the problem persists, then a Factory Reset usually fixes the problem.