Crashed "While tesselating liquid in world"

I was traveling my snapshot world through a lot of ocean when it crashed and got the following error.

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

 I reloaded the game, traveled in my boat a bit more, and then got the exact same error.

The attached is the crash notes it gave me.