Neoforge 1.21.5 crashes when creating a test world, with an "safe mode" warning before so.

Started by mariormderpy on Fri, 05/23/2025 - 21:54

Topic category: Troubleshooting, bugs, and solutions

I've tried swapping it from disk E:/ to C:/ but nothing worked, i've checked if it was a bug only on MCreator, but it crashed when i exported it too.
https://pastebin.com/FXk5WznS

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java.lang.IllegalStateException: Failed to parse obscure_at_midnight:neoforge/biome_modifier/engineer_biome_modifier.json from pack mod/obscure_at_midnight

Seems something is wrong with engineer_biome

Btw do you use any plugins?

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