I am unsure of what causes this crash or if it is even IC2 related, so i don't think it belongs in bug tracker yet.
This crash only happens when i log in while in a certain chunk(s) (My house, to be exact). once i have logged in, i can walk into and around the chunk(s) with no noticeable problems
If i edit the server files and move my character away(horizontally, not vertically), i log in fine.
Normally i can figure out what is causing a crash via the report, but this time it is too obscure for me.
---- Minecraft Crash Report ----
// Sorry 
Time: 6/14/13 1:06 AM
Description: Unexpected error
java.lang.NullPointerException
at net.minecraft.client.renderer.tileentity.TileEntityRenderer.func_76950_a(SourceFile:90)
at net.minecraft.client.renderer.RenderGlobal.func_72713_a(RenderGlobal.java:520)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1220)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:991)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:871)
at net.minecraft.client.Minecraft.run(Minecraft.java:760)
at java.lang.Thread.run(Unknown Source)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Stacktrace:
at net.minecraft.client.renderer.tileentity.TileEntityRenderer.func_76950_a(SourceFile:90)
at net.minecraft.client.renderer.RenderGlobal.func_72713_a(RenderGlobal.java:520)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1220)
-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['inucune'/832876, l='MpServer', x=-139.48, y=56.62, z=-3.18]]
Chunk stats: MultiplayerChunkCache: 115
Level seed: 0
Level generator: ID 02 - largeBiomes, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (-20,64,240), Chunk: (at 12,4,0 in -2,15; contains blocks -32,0,240 to -17,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 19601124 game time, 5954689 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 43 total; [EntityZombie['Zombie'/832951, l='MpServer', x=-81.50, y=16.00, z=-26.50], EntityCreeper['Creeper'/832950, l='MpServer', x=-80.50, y=15.00, z=-36.50], EntityItemFrame['entity.ItemFrame.name'/0, l='MpServer', x=-132.50, y=62.50, z=-7.94], EntityClientPlayerMP['inucune'/832876, l='MpServer', x=-139.48, y=56.62, z=-3.18], EntityBat['Bat'/832959, l='MpServer', x=-91.31, y=44.00, z=17.29], EntityCow['Cow'/832958, l='MpServer', x=-82.47, y=68.00, z=11.81], EntityBat['Bat'/832957, l='MpServer', x=-90.60, y=44.35, z=14.97], EntitySkeleton['Skeleton'/832956, l='MpServer', x=-95.50, y=43.00, z=6.50], EntitySkeleton['Skeleton'/832955, l='MpServer', x=-94.50, y=44.00, z=10.09], EntityBat['Bat'/833091, l='MpServer', x=-75.53, y=30.00, z=-48.61], EntitySkeleton['Skeleton'/832954, l='MpServer', x=-91.50, y=43.00, z=7.50], EntityCreeper['Creeper'/832953, l='MpServer', x=-85.50, y=43.00, z=-24.50], EntityBat['Bat'/833089, l='MpServer', x=-76.54, y=29.27, z=-47.92], EntityZombie['Zombie'/832952, l='MpServer', x=-95.50, y=16.00, z=-20.50], EntityEnderman['Enderman'/833050, l='MpServer', x=-62.50, y=14.00, z=-2.50], EntityEnderman['Enderman'/833049, l='MpServer', x=-71.50, y=14.00, z=-4.50], EntitySheep['Sheep'/832930, l='MpServer', x=-151.81, y=66.00, z=-71.16], EntitySheep['Sheep'/832941, l='MpServer', x=-117.13, y=25.00, z=41.94], EntitySheep['Sheep'/390, l='MpServer', x=-145.94, y=72.00, z=-28.03], EntityCreeper['Creeper'/833242, l='MpServer', x=-194.50, y=20.00, z=2.50], EntityZombie['Zombie'/832977, l='MpServer', x=-62.50, y=16.00, z=-10.50], EntitySkeleton['Skeleton'/833459, l='MpServer', x=-80.50, y=52.00, z=-30.50], EntityBat['Bat'/832976, l='MpServer', x=-61.84, y=23.10, z=-32.44], EntityItem['item.item.rottenFlesh'/832916, l='MpServer', x=-201.06, y=63.13, z=-43.44], EntitySkeleton['Skeleton'/833458, l='MpServer', x=-82.50, y=52.00, z=-30.50], EntitySkeleton['Skeleton'/833404, l='MpServer', x=-187.50, y=41.00, z=65.50], EntitySheep['Sheep'/832919, l='MpServer', x=-184.06, y=64.00, z=-60.13], EntityCreeper['Creeper'/833402, l='MpServer', x=-187.50, y=41.00, z=67.50], EntityCreeper['Creeper'/833403, l='MpServer', x=-188.50, y=41.00, z=66.50], EntitySheep['Sheep'/832980, l='MpServer', x=-63.66, y=69.00, z=44.44], EntitySkeleton['Skeleton'/833460, l='MpServer', x=-81.50, y=52.00, z=-31.50], EntityBat['Bat'/833121, l='MpServer', x=-179.96, y=31.31, z=26.31], EntityBlock['unknown'/46, l='MpServer', x=-136.75, y=5.00, z=61.25], EntitySheep['Sheep'/832920, l='MpServer', x=-185.03, y=63.00, z=38.91], EntityBat['Bat'/833122, l='MpServer', x=-180.88, y=31.00, z=24.86], EntityZombie['Zombie'/833200, l='MpServer', x=-92.50, y=45.00, z=20.50], EntityBat['Bat'/832964, l='MpServer', x=-70.25, y=41.10, z=-72.53], EntityBat['Bat'/832965, l='MpServer', x=-69.91, y=42.23, z=-61.81], EntityZombie['Zombie'/832966, l='MpServer', x=-68.50, y=34.00, z=-38.50], EntityCow['Cow'/832967, l='MpServer', x=-65.56, y=73.00, z=34.25], EntityCow['Cow'/832968, l='MpServer', x=-70.31, y=67.00, z=62.22], EntityCow['Cow'/832969, l='MpServer', x=-76.38, y=71.00, z=52.59], EntityCreeper['Creeper'/832975, l='MpServer', x=-62.09, y=25.00, z=-35.72]]
Retry entities: 0 total; []
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:441)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2414)
at net.minecraft.client.Minecraft.run(Minecraft.java:783)
at java.lang.Thread.run(Unknown Source)
-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_06-ea, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 735770488 bytes (701 MB) / 1002307584 bytes (955 MB) up to 1002307584 bytes (955 MB)
JVM Flags: 4 total; -Xms1024m -Xmx1024m -Xmx1g -Xms1g
AABB Pool Size: 21353 (1195768 bytes; 1 MB) allocated, 2 (112 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v7.51 FML v5.2.17.716 Minecraft Forge 7.8.0.716 15 mods loaded, 15 mods active
mcp{7.44} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
FML{5.2.17.716} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Forge{7.8.0.716} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
denLib{3.0.13} [denLib] (denLib-1.5.2-3.0.13.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
BuildCraft|Core{3.6.0} [BuildCraft] (buildcraft-A-3.6.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
BuildCraft|Builders{3.6.0} [BC Builders] (buildcraft-A-3.6.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
BuildCraft|Energy{3.6.0} [BC Energy] (buildcraft-A-3.6.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
BuildCraft|Factory{3.6.0} [BC Factory] (buildcraft-A-3.6.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
BuildCraft|Transport{3.6.0} [BC Transport] (buildcraft-A-3.6.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
BuildCraft|Silicon{3.6.0} [BC Silicon] (buildcraft-A-3.6.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
DenPipes{2.0.4} [DenPipes] (DenPipes-1.5.2-2.0.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
IC2{1.115.341-lf} [IndustrialCraft 2] (industrialcraft-2_1.115.341-lf.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Forestry{2.2.6.2} [Forestry for Minecraft] (forestry-A-2.2.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
IC2NuclearControl{1.5.1c} [Nuclear Control] (IC2NuclearControl-1.5.1c.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Railcraft{7.2.1.0} [Railcraft] (Railcraft_1.5.2-7.2.1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
LWJGL: 2.4.2
OpenGL: Intel(R) HD Graphics 3000 GL version 3.1.0 - Build 9.17.10.2932, Intel
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: 173 (9688 bytes; 0 MB) allocated, 173 (9688 bytes; 0 MB) used