So after using MCEdit to add a schematic of a mansion, I opened up my world to find it crashes. I tried restarting, and yet, it crashes, please help.
What I expected to happen was...:
What I expected to happen was that I should of seen a big pretty mansion where I put it.
What actually happened was...:
What actually happened was a big lag spike and then an error message.
Steps to Reproduce:
1. Download the schematic from http://www.minecraft-schematics.com/schematic/235/download/
2. Put it in the middle of the desert with a huge piece of grass you also put.
3. Launch the world and watch the crash happen.
The fact that you are modifying your world in MCEdit to produce the crash invalidates the issue. Unless it is an issue with how Minecraft modifies your world, it cannot be said to be a Minecraft bug.