I can't open my books in iPad
I can no longer open many of my purchased books on my iPad.
The books I can't open have covers which are now solid colors with the title and the author's name.
Previously that had the regular cover art (and could be opened).
The books I can open were books I purchased, but hadn't downloaded onto the iPad (cloud with downward arrow in the upper right corner).
Once downloaded, they appeared with regular cover art.
All the books that are on my iPad appear on my iPhone, with cover art.
Any suggestions greatly appreciated.
Thanks.