When fishing, the fishing line looks like it's underwater whenever its above water.

I did /kill @e and it said i died, but when I clicked respawn, I hadn't moved. I then do it again and click respawn, and I see myself like if I were inside another player, I hit myself, and I get kicked for "trying to hit an invalid entity"

When I try to spawn in I can't see anything but the hotbar, and I could only fix it by relogging or waiting a long time.