What could be causing thumbnails not showing when I use this plugin? If I just convert .epubs into .kfx without using plugin (personal document), and I side load them manually, I get thumbnails. If I use that same .kfx to generate wordwise and x-ray, file gets uploaded to Kindle automatically via Calibre, and I get a generic thumbnail on the books.
I think that there's something to do with Calibre uploading books to the device, so I'm wondering how would one go into sideloading .kfx and x-ray manually, if it's possible?
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