[1.7.10]:

[zeff9801]

Modpack

No response

Help isloating the issue

• [ ] Did you tried to disabling some mixins in the mod config to see what mixin made the issue?
• [ ] Did you find what mixin made the issue?

Game log

java.lang.NullPointerException: Exception ticking world at net.minecraft.world.chunk.NibbleArray.func_76582_a(NibbleArray.java:542) at net.minecraft.world.chunk.storage.ExtendedBlockStorage.func_76670_c(ExtendedBlockStorage.java:156) at net.minecraft.world.chunk.Chunk.func_76614_a(Chunk.java:770) at net.minecraft.world.World.func_72972_b(World.java:5330) at net.minecraft.world.World.updateLightByType(World.java:3782) at net.minecraft.world.World.func_147463_c(World.java:4930) at net.minecraft.world.World.func_147451_t(World.java:3708) at net.minecraft.world.World.func_72903_x(World.java:5454) at net.minecraft.world.World.func_147456_g(World.java:3595) at net.minecraft.world.WorldServer.func_147456_g(WorldServer.java:444) at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:287) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:963) at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:431) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:842) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:692) at java.lang.Thread.run(Thread.java:748)

Description

Crash during chunks exploring probably related to one of the mixins

[quentin452]

Can you try disabling enableMixinNibbleArray

If the issue diseappar with enableMixinNibbleArray disabled , try reenabling it and using this dev build (don't unzip the zip) optimizationsandtweaks-V1.2.8-1-7-10.3+575e4f5bd5-dirty.zip

if the issue appear again with enableMixinNibbleArray disabled give to me the new log

[zeff9801]

I can confirm the dev version seems to have fixed the issue and the server nolonger crashes with it enabled