Use the mod versions of the Datapacks and randomize the seed when creating the world.
Manually edit the "seed": in \data\minecraft\dimension\overworld.json, \data\minecraft\dimension\the_nether.json, \data\minecraft\dimension\the_end.json, depending on which packs you're using or not.
Update process might be different depending on the project.s you're using.
The bug is gone in 1.19, if possible, use this or update to it.
Custom dimensions JSON requires a set seed to work, so the seed is set.
The seed of my world is always the same and so generates the same
Update your game to the corresponding version of the Datapack.
Download the corresponding version of the Datapack for your game version.
You're using the Datapack with the wrong version of Minecraft.
REALMs don't allow experimental options like WorldGen Datapacksĭatapacks won't validate when creating a Singleplayer world.
WorldGen datapacks won't work on my REALM
Pirated Minecraft launchers can have issues with Datapacks.
11.1 I can't install a WorldGen Datapack on a Multiverse world server.
10.1 WorldGen Datapacks ruin my performance.
8.1 Would this mod be compatible with one of the Datapacks?.
7.1 Biomes aren't generating correctly or do not appear at all / It's impossible to join a dimension.
6.1 How to install a WorldGen pack to my server? / The world on my server didn't change after installing the packs / New biomes only generate in unexplored chunks.
5.1 I got chunk borders after updating the pack / I got chunk borders after adding another WorldGen pack / How to update or add a WorldGen pack safely.
4.1 The seed of my world is always the same and so generates the same.
3.1 Datapacks won't validate when creating a Singleplayer world.