I have confirmed that ...

• Arclight is up to date
• all dependencies are installed
• all plugins and mods are up to date
• unable to reproduce in Spigot
• unable to reproduce in Forge

Arclight version

arclight-1.20.1-1.0.6-SNAPSHOT-cea9b0a

OS & Java versions

java version 21.0.3 by Eclipse Adoptium; OS Linux arch amd64 version 6.1.0-21-amd64

Plugins and Mods

Plugins:
Multiverse-Core [4.3.13]

Mods:
Serene Seasons [1.20.1-9.1.0.0]
Oh The Biomes We've Gone [1.4.1]
GlitchCore [1.20.1-0.0.1.1]
CorgiLib [1.20.1-4.0.3.2]
GeckoLib [1.20.1-4.4.9]
Oh The Trees You'll Grow [1.20.1-1.3.1]
TerraBlender (Forge) [1.20.1-3.0.1.7]

Description

Mod datapacks loads on the "main-world" BUT on the "multi-world" it does not load.
Normally datapacks from mods should be loaded "server-wide" even I'm on the "multi-world" too right?

Can you help me fix this?

With my testing I have been confirmed:
1.With 2 worlds loaded, imported or created by any multiworld plugins. Mod datapacks will ONLY works on the "main-world", but DOES NOT work on the "multi-world".
2.If you want to know if it works or not just open your creative inventory and search for "Calendar" (from Serene Seasons).
If the calendar shows "numbers" that means it works, if it shows "???" that means it doesn't work.
OR you can just flying straight until the new chunks are generated and you'll see that no matter how far you fly, the chunks will be generated ONLY in vanilla biomes and will NEVER generated in BWG biomes. That means the BWG datapacks doesn't work.

Step to reproduce

No response

Logs

No response

Server pack link (Optional)

No response