I recently converted some of my
EPUB 2 e-books into
EPUB 3 in
Calibre, and adjusted the cover so that it is centered,
thanks to the help of this community.
However, I have noticed that when I import some of these e-books to
Google Play Books on my
Android phone,
the cover doesn't appear in the thumbnail.
To be clear, if I open the book, I will see the cover, but it doesn't appear in the thumbnail when I look at my bookshelf, as you can see
in the screenshot below.
None of the other ePub Readers I've tried on both Android and iOS have this issue. When I import those same
EPUB 3 converted e-books into my iPad,
the cover appears correctly in the thumbnail on Apple Books.
How do I fix it?
I can send a copy of my e-book if you want to test it on your devices.