Progress Reset

I want to say I was halfway through the new book, Throne of Blood, and when I opened the Hosted Games app again after taking a break I get a small notification that there was an app update and when I opened the book, all my progress was lost. I went through other books I was reading but did not finish and they were fine, it was just this one. Did anyone else have this happen? Just wanted to make sure before I submit a ticket or go through the process of replaying.