[MC-5205] Crash at creating a world

When I create a Superflat world and I want to costumize it, Minecraft crashes. I will attach the error log.

Linked issues

duplicates 1

MC-3777 TickNextTick list out of synch Resolved

Attachments

crash-2012-12-22_10.44.36-server.txt

Comments 1

kumasasa 2012-12-22T10:02:48Z

This ticket is invalid as it relates to a modded or 3rd party client/server.

Any non-standard client/server build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the plugin creator.
This site is for addressing issues related to the base unmodded MineCraft.

and

Duplicate of MC-3777 , please use the search function to see if your bug has already been submitted. Currently over 35% of tickets are being closed as duplicate.