Today I had a problem with my screen locking up or unresponsive. At first I thought it might be something on the screen but it happened suddenly and screen looked clean. I noticed it would not respond to a home swipe at the bottom. It also would not let me close apps running. I was able to shut down and restart but it was slightly better. I decided I would drive down to the Apple store and have them look at it. Was having lunch with a friend and got a call. I couldn’t answer the call and that really convinced me I have a problem. I tried several times to shut down and restart but it would not respond to swiping across. Finally it shut down. I left it off for about 10 minutes before I restarted. Also had to hold on the button for about 10 - 15 seconds before it would restart. The restart after the Apple in the middle of the screen was much faster than I ever experienced on my 5s. Everything works fine now, response to screen is back to normal. Has anybody had this problem with their Xs MAX?