Closing home screen
I periodically lock myself in Newsstand by double clicking the Home button then closing all the apps including the Home screen. I then have to reset the iPad Air,2 by pressing the home and reset buttons. If I am careful and not close the Home screen then I can double click the Home button to return to the Home screen. This has something to do with the way Newsstand works as a folder but represents an inconvenient bug.
iPad Air 2 Wi-Fi, iOS 8.3