I've only just started having the same problem on my Kobo Mini all was working fine and then all of a sudden all new books i send to device do not have cover i have to go into kobo utilities plugin and select the new books and click upload covers.
The only thing i can think of that's changed since this problem poped up is i updated to latest version on calibre im think of downgrading if possible and try and sending books my be a bug.
edit: sorry about bumping old topic did not mean to, my problem with covers was low space/memory.
Last edited by bballuk; 07-18-2016 at 07:24 PM.
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