Describe the bug you're experiencing

https://mclo.gs/5GFo5T1

Reproducability

put this mod and more culling (1.21.1 neoforge .61)

Mod up to date

• Before submitting this issue I updated to the newest version and reproduced it

Minecraft version

1.21.1

Modloader version

Forge

Logs

https://mclo.gs/5GFo5T1

also, does the mod work in singleplayer,and would it work with lan hosted world using e4mc mod? (just to know if i have an useless mod xD)

ye it does work in singeplayer/lan too, this issue though doesnt have anything to do with chunksending, probably just the coremodding of mixinsquared/moreculling failing