Game Crash: "The game crashed whilst tesselating liquid in world Error: java.lang.NullPointerException: Tesselating liquid in world"

Game crashed. Who knows why. What is tesselating liquid? I got this crash to happen by filling a quarter of a whole chunk with TNT, 16 by 64 by 16 and blew it up. It was incredibly crashy because that is a lot of TNT! I quit and rejoined and the game crashed. I have attached the full crash report below. Anyways the game crashed and I want to let you guys know.