Given a server with 2 worlds 'world' (default) and 'redstone' if you join the server in redstone then lp user SavageCore info it returns world=world

After mv tp world and mv tp redstone, context is correct world=redstone and permissions work.

Is this a configuration issue or bug?

Multiverse-Core-2.5.0 (#725)
LuckPerms-Bukkit-2.17.0
Vault 1.5.6
spigot-1.11

I'm not having this issue at all. It's reporting the correct world on login. (my spawn world is called "mainworld")

I'll do some testing, there's a few flaws in what I'm doing for this feature - hopefully changing some of the handling of this will fix the issue.