So, I was playing the new 1.19 snapshot (Idk why is there only 1.18.1 version option) and trying to do the water bucket clutch MLG. I put a wooden plank on the highest limit. Then when I was starting, I pressed F5 to change perspective and see how it looks. Then I saw I'm totally invisible. When I reached one block down, I became visible again. So why I was invisible? It didn't happen on other versions.