When I entered my world, I found that I had been teleported to the spawn point and my experience and items had been cleared. I went to the place where I saved the world and my item was missing.( My bed hadn't been removed. If I was killed while entering, I should be on my bed instead of at the spawn point) Fortunately, I had copied the world before entering, so I entered the copy and the incident did not occur. This happened twice after I updated from 1.19.22 to 1.19.51. I have no idea how this incident was triggered. I deleted the faulty world, and I did not take a screenshot. All the difference is that my position was reset and my items were cleared.