Some random player on my server crashes the server instantly when he joins. I banned him for now. When I teleport to his location, I also then crash the server. It doesn’t seem like a corrupt chunk, because before teleporting to his location, I teleported to the same x and z positions, but at a higher y coordinate:
Here is the crash report: https://hastebin.com/kinihevuho.rb
Player is not in creative, does not have access to any special stuff. Before the crash he was messing with sponges in his base. Prior to him crashing the server I updated to the latest paper build #435.
Dropped this on the github instead: https://github.com/PaperMC/Paper/issues/1663