Can no longer open one textbook
My son has been using Pearson's World History textbook on his iPad for the past few weeks with no problems. Last night, he tried to open it and just has the cover page with a spinning progress wheel (what you normally see for about 5 seconds before the book opens to where you last were).
He can open his Chemistry textbook (also Pearson) and a few other books to wherever he left off - just this one textbook is giving a problem.
Connected iPad to my PC (Win7 w/ latest iTunes) and unchecked the book and hit Sync to remove it. Then rechecked and sync'ed - same problem.
Selected and Deleted the book from iBooks bookshelf.
Then I got a notice that iPad needed a system update (8.4.1, maybe? - I'm at work, can't remember exact rev). So the iPad was updated, rebooted, etc and then I added the book back onto the iPad from my PC. Same problem again.
I left the book attempting to open overnight - woke up this morning to the same spinning wheel - it isn't a matter of not being patient!
If the book file had gotten corrupted on iPad that wouldn't have corrupted the copy downloaded on my PC, so I can't see that re-downloading from iTunes store would matter (so I haven't tried that yet - I can try tonight if no better ideas).
So - anyone have a better idea??
iPad Air Wi-Fi, iOS 8.4.1, iBooks