Describe the bug

The game will crash when create the world with some seeds(for example: 1271878342426792493).

Reproducibility

• I reproduced this issue with as few other mods as possible installed.
• I am unable to reproduce this issue consistently.

Screenshots and/or videos

No response

Logs

https://mclo.gs/paClmUE

Debug Logs

No response

Crash Reports

https://mclo.gs/uwTAx7u

Alfheim Version

1.2

Forge Version

1.12.2-14.23.5.2680

MixinBooter Version

8.9

Java Version

1.8-051

Java Virtual Machine

Hotspot

Operating System

Windows 11

GPU Vendor

AMD

Code of Conduct

• I agree to follow this project's Code of Conduct

Could you try with this version: https://www.curseforge.com/minecraft/mc-mods/alfheim-lighting-engine/files/5201011

seems to be fix i was able to create a world with the seed 1271878342426792493 with GTCEu without crashing when using Alfheim 1.3 Dev 2

Amazing

I encountered the same error while testing with Cleanroom, the message given in the log indicated that its a problem from some mod that modifies the world, then I removed RTG and BOP it works fine.
I also installed GregTech CEu 2.6.x (latest), but it is okay.

I encountered the same error while testing with Cleanroom, the message given in the log indicated that its a problem from some mod that modifies the world, then I removed RTG and BOP it works fine. I also installed GregTech CEu 2.6.x (latest), but it is okay.
However there is no RTG or BOP,I reproduced this issue with as few other mods as possible installed.