[23:07:46] [Server thread/WARN] [FML]: ****************************************
[23:07:46] [Server thread/WARN] [FML]: * There is an attempt to load a chunk (-435,-462) in dimension -29 that is already being loaded. This will cause weird chunk breakages.
[23:07:46] [Server thread/WARN] [FML]: *  at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:154)
[23:07:46] [Server thread/WARN] [FML]: *  at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
[23:07:46] [Server thread/WARN] [FML]: *  at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
[23:07:46] [Server thread/WARN] [FML]: *  at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199)
[23:07:46] [Server thread/WARN] [FML]: *  at net.minecraft.world.World.func_72964_e(World.java:419)
[23:07:46] [Server thread/WARN] [FML]: *  at net.minecraft.world.World.func_147439_a(World.java:345)...
[23:07:46] [Server thread/WARN] [FML]: ****************************************