Describe the bug
Updating NeoForge to 21.1.181 or 21.1.182 results in a crash. NeoForge 21.1.180 works fine

To Reproduce
Steps to reproduce the behavior:

1. Upgrade NeoForge to 21.1.181 or 21.1.182
2. Start game.
3. Watch crash

Expected behavior
Game to load without crashing.

Additional context
Developing a modpack on Minecraft 1.21.1. Game loaded fine with NeoForge 21.1.180. Crashes every time after updating NeoForge (no other changes).

log.txt

it has to do with the Kotlin provider

I can confirm that the mod loads without crashing on NeoForge 21.1.186 after updating to Kotlin 5.9.0.

thedarkcolour/KotlinForForge/issues/124