Version Info

• Minecraft: 1.21.6
• Core Lib: 1.1.18

Steps to Reproduce

1. Add this mod to the mods folder.
2. Attempt to launch the game.
3. Game will not launch.
4. Additional info: I've tried launching with just this mod, just all mods made by yourself, and my whole modpack, same error every time.

Crash report (~/logs/latest.log)
crash-2025-07-01_09.47.10-client.txt

Just adding, tested this with same configurations on 1.21.7 with the same results so both versions experience the crash.

For some reason the method I target with a mixin in LevelRendererMixin has an extra parameter outside the dev environment. Hence, it works fine for me when testing, but fails when run from a regular client.
Seems like this happens every time I update to new Minecraft version now 😅

I fixed it now in version 1.1.18a of my core library for Fabric on 1.21.6 and 1.21.7.
Thank you for reporting the issue!

Just tested it, works fine on both versions now. Thanks for fixing so quickly :)