Block/Light update reentrance detected > crash server

[TheMikol]

Describe the bug
While generating the world, errors appear in the console and after a while the server crashes

To Reproduce
Steps to reproduce the behavior:

1. Check listmod / download my modpack Valley Land
2. On the server side, add c2me
3. Set fly speed to 5, for example, and generate a world

Runtime info (please complete the following information):

• OS: Ubuntu 24.04
• Minecraft version: Fabric 1.21.1
• Mod version: 0.3.0+alpha.0.358 devbuild for 1.21.1

Crash reports / logs
Pastebin

Other mods
Modpack

Checklist

• 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.

[TheMikol]

On the server side I have: alternate current, async, noisium, scalablelux, servercore, and vmp

[ishland]

Please provide full logs and watchdog crash report.