Book cover in Kobo didn't get sync with library change

[fancl20]

Describe the bug/problem The book cover in Kobo didn't get updated after the cover in the library changed.

To Reproduce Steps to reproduce the behavior:

1. Add book and its cover
2. Sync with Kobo
3. Change the cover
4. Sync with Kobo, cover won't update.

Tried force sync all.

Expected behavior Cover updated

[OzzieIsaacs]

This is indeed the case, changing title, author or something else is also not working. I haven‘t found a solution for this yet

[fancl20]

Is this a limitation on Kobo side? I also can't find a way to force kobo remove the local metadata even with "repair account". Although that do download the cover if it's missing.

[OzzieIsaacs]

Yeah, kobo stores the metadata and if you change it afterwards kobo doesn‘t care and uses the old ones

[fancl20]

Maybe we can calculate the book id (for kobo) by hashing metadata? So kobo will simply treat is as a different book if metadata changed.

[Fosnine]

Regarding the cover: It seems that a workaround is to connect the Kobo to a PC and delete the content of the relevant book from .kobo-images. I added a couple of books before making sure the covers were good and was stuck with the same issue you described. I deleted all the folders in .kobo-images and did User->Force Full Kobo Sync in calibre-web (not sure whether the last step is necessary but I think it was in my case). Next time you sync, Kobo requests all the covers again from calibre-web. There's a separate issue regarding the resolution but #2817 has been opened for that.

This won't solve the metadata issue but at least you get prettier covers. 😃