Environment: Spigot 1.11.2, Skript 1.22-dev23, ItemJoin 3.8, and a myriad of other up-to-date plugins. The presenting issue is that Skript misinterprets a permission node under certain conditions.

I have isolated the problem to ItemJoin. Specifically, the issue occurs only if I use the hotbar item set by ItemJoin, which executes mvtp world. If I execute /mvtp world directly, the permissions are correctly assessed. Please see SkriptLang/Skript#335 for a description of the test scripts.

Here is the minimum plugin set needed to reproduce on my test server, due to dependencies.

ChestCommands 3.1.4
Essentials 2.0.1-b463
ItemJoin 3.8
Multiverse-Core 2.5.0-SNAPSHOT-b725
PermissionsEx 1.23.4
PerWorldInventory 1.9.0
Skript 2.2-dev23
Vault 1.5.6-b49
WorldEdit 6.1.7-SNAPSHOT;3674-9f24f84
WorldGuard 6.2.1-SNAPSHOT;1701-e019890

I would be happy to provide access to my test server, if useful to isolate and resolve this issue.

Hypothesis: Right-clicking on the ItemJoin item in hotbar slot 9 executes the command as OP. That would explain the anomaly.

I don't see anything in the configuration that would cause execution as OP, but I would be happy to be shown my error.

ItemJoin/config.yml:

config-Version: 5
Language: 'English'
CheckforUpdates: false
Vault: true
PlaceholderAPI: false
Multiverse-Core: true
Multiverse-Inventories: false
PerWorldInventory: true
PerWorldPlugins: false

items.yml (partial):

items-Version: 5
Global-Settings:
Prevention:
prevent-pickups: false
AllowOPBypass: false
CreativeBypass: false
Clear-On:
clear-on-join: false
clear-on-world-change: false
clear-only-itemjoin-on-join: true
clear-only-itemjoin-on-world-change: true
AllowOPBypass: false
First-Join:
FirstJoin-Mode-Enabled: false
Get-Items:
ItemJoin-Specific-Items: true
Global-Items: false
Delay: 2
world_lobby:
items:
changeWorld-universe:
id: PRISMARINE_CRYSTALS
data-value: 0
enchantment:
- 'FIRE_ASPECT:1'
name: '&bChange world'
slot: 8
count: 1
lore:
- 'Teleport to another world'
commands-action: RIGHT_CLICK_AIR, RIGHT_CLICK_BLOCK
commands:
- 'chestcommands open mvtpWorld.yml'
itemflags:
- 'unbreakable'
- 'hide-attributes'
- 'placement'
- 'inventory-modify'
- 'count-lock'
- 'self-drops'
- 'respawn'
- 'world-changed'
- 'hide-durability'

Any hints?

Sorry I have been busy with a lot of other bug testing and I havent had time to run it with Skript. I am multi tasking the v3.9 bug fixes with the v4.0 release and I am getting caught up in so much stuff. My goal this week is to lock down on v3.9 and get it released I will let you know when I have an update on this.

I have a few other people running a similar setup as you with no problem so I am a bit curious.

Thanks for the update. I imagine that it depends on what specifically they are doing with IJ and Skript. I posited (above) that perhaps IJ is running the commands as OP; that would be one plausible explanation. It may not affect other users, but since I'm checking a permission, it affects me. Of course, the issue may be caused by something entirely different.

The test scripts are extremely compact. It would take just a few minutes to verify the reproduction scenario.

I would be happy to provide access to my test server, if that would be useful to isolate and resolve the issue.

I am finally working on bug testing this, it seems like its going to take me a while as I have no knowledge of Skript and usually my bug testers handled that end of things.

Thanks. I provided the necessary scripts, and explanation of the results. The scripts provide all the output required to verify the issue.

While I would be happy to be shown my error, I think the data speak for themselves.

I figured it out. The problem was permissions configuration at my end. Please accept my apologies for wasting your time.

Its all good, its a learning experience for me.