[GnRFan79]

For some reason within the last few days I've noticed that Epub books that I send to my Kindle don't show the cover on the lock screen any more.

I sent three at the beginning of the week and these showed the cover image on the lock screen fine.

Then I removed those epubs last night and sent a couple more but these don't show the cover on the lock screen.

I've experimented with half a dozen epub files today and none of these will show the cover on the lock screen.

I've tried sending the epub via email and also sending the epub to my iphone and then sharing it out to the Kindle app - the same behaviour occurs each time.

I also get the same whether I send the epubs direct or if I pass them through Calibre and convert them from epub to epub before sending.

I'm still on firmware 5.15.1 which I've been on since it was released.

Has anyone else noticed this behaviour?