When a certain chunk loads, the game will crash. According to the launcher's text, something is messing up with spider spawners.

What I expected to happen was...:
It loads and I go on with my adventuring.

What actually happened was...:
All blocks and entities disappear, leaving only the sky-color on the screen for around half a second. Then the game closes and the launcher reports an error.

Steps to Reproduce:
1. I was using a certain map called The Lands of Reminiscence
2. Load up the world at the area around the top of the waterfall
3. Wait