Good evening, I was flying today and, about one hour after departure during cruise, the aircraft suddenly froze, even though I had not touched any button. All the systems and displays were frozen, but the aircraft continued flying normally. This is the first time this has happened to me. I have the latest Navigraph database update and aircraft version installed (V1.2.6), and I am flying on MSFS 2020. Could you please help me identify the cause of this issue? Thank you for your assistance. Kind regards, Victorien