I am having the same problem. Just started about 1/2hr ago. Was happily binge reading...finished book and went to open the next one in the series, and CC won't read any book. Tried switching between tap or long press, restarted, powered down, cleared the reader...nothing. CC won't read. Same behavior the others describe. CC does nothing when I try to read from the list (my usual method), and the Read button on the Book Details screen crashes CC.
I have a Samsung Galaxy Tab S2. I usually read with the Nook reader, but I also use Bookari sometimes. I have (had) CC ask me which one I want to use when I open a book to read it. CC does not get that far.
I sent feedback with the log attached. (I think.) Let me know if you don't get it.
I am on 5.4.4.6. It looks like people who loaded 5.4.4.7 are having the same problem? CC usually updates itself, should I force this from the App Mgr?
This is awful!!!