Three times today, my iPad Pro screen became unresponsive and wouldn't open any apps when you touched the screen. The home button still worked but nothing would open. I finally used the power button and shut the screen off and back on then it worked. Later I was playing a game and all the sudden I couldn't press any buttons to get it to do anything. Finally it started working again without turning off the power button, but definitely was frozen or unresponsive. I've never had this happen on my iPad Mini 2.