Random restart when exiting a recorded show

Hey guys, after a year or so or flawless operation I have started to experience an issue when I back out of a recorded show. The unit will freeze momentarily and then restart. What can I do to to make this stop. It is random but has happened 3 times in the last 10 days! I didn’t see any updates on the unit in the settings. This is a HDMI dual unit. Thanks!