When I used a datapack to increase the logical height of the overworld to 1024 blocks C2ME caused a crash after a lot of stuttering.

Steps to reproduce the behavior:

1. Write a datapack that has a dimension_type folder with modification to overworld
2. load a world originally generated without the datapack

Expected:
normal minecraft operation

Actual:
chaos, crash

• OS: Win11 23H2 build 22631.3958
• Minecraft version: 1.21
• Mod version: 0.2.0+alpha.11.107+1.21
• Mod branch: ver/1.21

log

Other Mods: https://modrinth.com/collection/JiYpqik6 + Ultimine

• [ ✓ ] I am using the official version of the mod.
• [ ✓ ] I tried the latest development version but the issue persists.
• [ ✓ ] I searched for similar open issues and could not find an existing bug report on this.

I understand that dimension_type is considered an experimental feature in MC1.21, but thought the crash report would be useful anyway. I am not expecting this to be a priority of any kind to fix.

The crash is unlikely caused by C2ME. Also you are using 32 simulation distance, which can be a cause of stuttering.

Please try reproduce without C2ME.

turns out it was a bad interaction between several mods. Closing this as it is not an issue with C2ME specifically.