Luckperms Fabric API not modifying online users' permissions

[reiyooki]

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 specific Mod-loader Server (Forge/NeoForge/Fabric)

Arclight version

arclight-1.21.1-1.0.1-SNAPSHOT-38d813d

OS & Java versions

openjdk version "21.0.6"

Plugins and Mods

[02:49:52 INFO] [Console]: Plugins (7): PlaceholderAPI, CMILib, UltraEconomy, Vault, CMI, BreweryX, EconomyShopGUI-Premium

Description

When setting a permission for a user, if that user is offline, the permission is set normally and will be applied as expected. However, if that user is online, an error is thrown in console and the permission claims to be applied, but is not.

An example can be seen near line 559 of the supplied log.

Step to reproduce

1. Set permission for offline user /lp user <name> permission set <node> <value>
2. Check permissions for offline user and see it is applied /lp user <name> permission info
3. Have the affected user log in
4. Try to modify the permissions for that user in any way (Set a new one, unset one, change value of existing permission)
5. Check permissions for the affected user. Changes will not have been properly applied, despite Luckperms saying they were.

Logs

2025-02-26-1.log

Server pack link (Optional)

No response

[qyl27]

Oh, you're using the 5.4.153 version of Luckperms, which is for 1.21.4.
Changing to the correct version for 1.21.1 will help.

Btw, you can download the history versions of luckperms in modrinth or curseforge.
The version of mods must be exactly matched, but the plugins are not.

[reiyooki]

Completely missed that, thank you. I normally check that sort of thing, not sure how it slipped past me. Fixing the mod version seems to have fixed the issue.