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• Biomes O' Plenty is updated to the latest available version.
• This issue occurs with Minecraft 1.12.

We DO NOT support Minecraft versions 1.7.10, 1.8.9, 1.9.4, 1.10.2, 1.11 or anything below that!

YOUR ISSUE WILL AUTOMATICALLY BE CLOSED IF IT IS PERTAINING TO THOSE VERSIONS!

• Forge is updated to the latest available version.

• This issue occurs WITHOUT Optifine, Sponge or similar mods installed.

Mods such as Optifine and Sponge interfere with the normal functioning of the game by modifying its code.

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• This issue can be reproduced with ONLY Biomes O' Plenty and any other affected mods.

• All other mods which appear to be involved are updated to their latest versions.

• I have included any relevant logs and screenshots below.

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• This issue does not occur in a modpack.

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Issue Description:

Strange crash that I am not sure what exactly caused it, but it fired upon usage of a compass from Nature's Compass.

https://paste.dimdev.org/yifucejina.mccrash

Steps to reproduce:

1. I'm legitimately unsure, I used a compass from nature's compass to test an unrelated bug from another mod, to see if it was gone, and ran into this.

Additional Information:

• fml-client-latest.log or fml-server-latest.log:
• Screenshots:

Affected Versions (Exact numbers, do NOT use "latest"):

• Biomes O' Plenty: 7.0.1.2402
• Minecraft: 1.12.2
• Forge: 2765

Closing this because we either can't/won't fix it or it's not an issue in 1.13

Is this a good idea?

I actually think that Coherent Villages may be connected to this.
It's the only mod on a list of last-updated mods that @Sunconure11 gave me that even uses IntCache.

Related to #983
This could be caused by another mod messing with net.minecraft.world.gen.layer.IntCache.resetIntCache#.

No, it almost must be caused by that. I had Fulcanelli use a custom BoP build that prints the exact array that it fetched the climate ordinal that was out of bounds from. When it crashed, the specific value (248) could not be found in the printed array. It did contain a bunch of other values, though.

So I guess that some other concurrent process must be editing the array, the "int cache" that was obtained from the IntCache class.

Just for someone maybe reading this in the future, this is very likely to be caused by vanilla bug and fixed in latest 1.12.x forge build with MinecraftForge/MinecraftForge#5720 (forge build 2844, also fixed by Mojang in 1.13+)