I had to do a factory reset on my 6th gen Kindle Paperwhite, which meant re-downloading all my collections and books. Now only about a third of the book cover thumbnails are showing; the rest are just the blanks with the title. I've tried restarting the device, and removing the books from the device and re-downloading them. I left the device connected to wifi -- which I normally don't do, to save battery life and because page turns slow down when connected -- thinking it just needed time to load the covers. That hasn't worked, either. What do I have to do to get the book cover images back for the other 2/3 of my library?
I did the Reset with my Oasis earlier in the week. It's something I do on a regular basis but it takes time for the cover images to download. I find that I have to keep each page of books open, with WiFi on, and the covers eventually appear. Then I move on to the next page. Do you, by any chance, have a lot of books on your account. I share my Amazon account with several other family members so I have thousands of books.
Having said that, I never turn WiFi off. I don't find that it makes a significant difference to batter life or slows my Kindle in any way.
Thanks for your reply. I'll see if that works. I do have a lot of books -- around 900 -- and maybe that's part of it.
I do find a huge difference between airplane mode and connected to wifi, though. The pages turn slower, going back to home is slower, opening every collection and book is slower -- it's very noticeable. Maybe this is a difference between a 6th gen Paperwhite and an Oasis. (I also have a 7th gen Paperwhite -- same thing.)
ETA: 2 hrs later, keeping the page open with wifi on hasn't worked. Switching from "downloaded" to "all" adds a few covers, but it's still far from getting most of them.