WorldEdit Version

WorldEdit version 7.2.9-SNAPSHOT+6064-0ad3ab1

Platform Version

git-Paper-155 (MC: 1.18.1)

Confirmations

• I am using the most recent Minecraft release.
• I am using a version of WorldEdit compatible with my Minecraft version.
• I am using the latest or recommended version of my platform software.
• I am NOT using a hybrid server, e.g. a server that combines Bukkit and Forge. Examples include Arclight, Mohist, and Cardboard.
• I am NOT using a fork of WorldEdit, such as FastAsyncWorldEdit (FAWE) or AsyncWorldEdit (AWE)

Bug Description

On my server I use the Terralith datapack.

If you use //regen seed "5631573288712153026" on my testing case, WorldEdit throws the following exception and the server crashes:
https://paste.gg/p/anonymous/1a7b0aea05c143b0904e22e18f40b23d/files/367f654b7b274128946d4bd42894fd68/raw

Luckily I had a backup to restore from, but it writes some faulty chunk data or something the server does not like,

Expected Behavior

No crashes and faulty data, it should regenerate my world.

Reproduction Steps

1. Get the Terralith datapack
2. //chunk
3. //set 0
4. Try to regenerate the area with //regen seed

Anything Else?

No response

Spigot doesn't properly support world generation from data packs

Does Paper offer a suitable API for it?

I'm not referring to APIs. If you use custom worldgen or biomes with spigot, it corrupts the world slowly. Any plugins that interact with the API will also get invalid values - but that's not an API issue but an issue with the underlying world. Paper doesn't resolve it

at least as of 1.18.2 I can't reproduce this.