Check a player UUID before changing LuckPerms account data

Applies to: LuckPerms; match the linked maintainer documentation to your installed platform and release.
Documentation checked 9 November 2026.

A name change or authentication change can make a familiar username point at unexpected permissions. Confirm identity before moving ranks between account records.

Follow the procedure

Ask the player which authenticated account they use and when the issue started. Keep account evidence private and do not request their login password.
Use the LuckPerms user information command and server logs to record the UUID associated with the current connection. Compare it with the account record you intend to change.
Check whether a proxy, Floodgate or a recent online-mode change altered identity handling. Do not change authentication settings merely to make two records look alike.
Inspect both relevant records read-only and record their groups and direct nodes. A stale username in a data file is not sufficient evidence that the records belong to one person.
If an identity migration is required, prepare an isolated test and a complete permissions export. Follow the documented account migration procedure for the actual authentication system.
Apply a minimal approved membership correction only after ownership is established. Keep the old record until the broader player-data migration is understood and verified.

Check the result

The live connection should resolve to the confirmed UUID and receive only that account’s intended permissions. Test a normal reconnect and any proxy or Bedrock route the player uses. Keep inventory, homes, claims and punishment records in mind because those systems can use the same UUID independently.

If the result is wrong

If ownership or forwarding is unclear, stop the rank move and fix the identity path first. Do not copy an administrator’s permissions to an unverified name. Revert a mistaken direct grant by its exact node or parent entry, preserving both original account records for investigation.

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Fix a LuckPerms prefix priority without changing chat formatting

Remove a direct LuckPerms exception without weakening its parent rank

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Test EssentialsX teleport delay and movement cancellation

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Resolve an EssentialsX command alias conflict without removing either plugin

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Give staff a read-only EssentialsX player-information role

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Restrict EssentialsX repair commands to the intended tool policy

Review EssentialsX command-disabled entries after a plugin change

Test an EssentialsX jail location without trapping a real player

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Set EssentialsX maximum and minimum money limits with a boundary test

Change the EssentialsX currency symbol without changing stored money

Test an EssentialsX pay dispute using two controlled accounts

Review EssentialsX worth prices before enabling item selling

Explain an EssentialsX balance leaderboard that looks out of date

Trace an unexpected EssentialsX command charge

Back up EssentialsX money before a player-data migration

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Test whether a LiteBans mute covers a private-message command

Build a LiteBans appeal-review role without punishment access

Check a LiteBans moderator’s maximum punishment duration

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Verify the server scope of a LiteBans network punishment

Investigate a LiteBans database connection failure without losing history

Reverse one appealed LiteBans punishment while preserving the audit trail

Test an AdvancedBan time layout before staff use it

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Give an AdvancedBan helper access to history without ban powers

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Locate AdvancedBan correctly on a proxy network

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Check whether a vanished SuperVanish moderator can pick up items

Verify flight is safe when a SuperVanish moderator reappears

Check silent chest inspection without changing container contents

Find a SuperVanish join or player-list information leak

Remove vanish access from a staff role without leaving a hidden account

Check PremiumVanish layered visibility after changing staff ranks

Verify PremiumVanish network vanish across Velocity backends

Check vanished staff interactions before a live investigation

Recognize the PremiumVanish API jar before installing an integration

Give GrimAC alerts to one observer without granting exemptions

Remove a GrimAC exemption and verify when checks resume

Collect a GrimAC prediction log for a false-positive report