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The screenshot shows that the man sitting in the air. How did it happen? The answer is simple, I sat in the boat and decided to teleport, vanished and never even noticed that I was sitting up, then I started to jump up the stairs to quickly go down and saw that life was not taken away, looked at himself from the side, it turns out I'm sitting. From this we can identify the good news and the bad, you can jump to different heights and did not break, and the bad is that the pressure plate is not activated and the view is not correct, it is more correct to say the wrong position.
MC-16 TP Bug when you sit in Minecart/Boat/Riding pig