Board Thread:Questions and Answers/@comment-5885468-20121219195535/@comment-1757231-20140511020813

71.227.149.43 wrote: Malsf21 wrote: 71.227.149.43 wrote: I think the world anchor is from railcraft

Dave Yes, yes it is. But, if you're playing with Optifine and ANY ChickenBones mod (such as NEI), you're, in layman's terms, screwed. I think optifine is buggy. Don't know why the nei would mess it up though.

Dave Dave, it's because Optifine didn't change it's rendering process when forge did, causing many items calling a specific function to fail and crash the game.