Information

Full output of /ess version:

[12:29:55 INFO]: Server version: 1.15.2-R0.1-SNAPSHOT git-Paper-86 (MC: 1.15.2)
[12:29:55 INFO]: EssentialsX version: 2.17.1.53
[12:29:55 INFO]: PlaceholderAPI version: 2.10.4
[12:29:55 INFO]: LuckPerms version: 5.0.70
[12:29:55 INFO]: Vault version: 1.7.2-b107
[12:29:55 INFO]: Citizens version: 2.0.26-SNAPSHOT (build 1815)
[12:29:55 INFO]: EssentialsXChat version: 2.17.1.53
[12:29:55 INFO]: ChestShop version: 3.10-SNAPSHOT (build 161)
[12:29:55 INFO]: EssentialsXProtect version: 2.17.1.53
[12:29:55 INFO]: EssentialsXAntiBuild version: 2.17.1.53
[12:29:55 INFO]: EssentialsXSpawn version: 2.17.1.53

Details

Description
Hey, I have for like a month problem with permissions being ignored. Once one of my players discovered he can use /ban, /kick etc. I blocked it with external plugin, and reported to dev of BanManager which I'm using also. But now I discovered that it will probably be issue with EssentialsX, as players can also use aliases like /eban, /ekick, /etempban etc. and I'm very sure that they have the permission in LuckPerms set to false. Could you please help me with that? I can provide more information, just let me know, please.

Expected behavior
Players can't use /ban, /kick etc.

btw. I can remember that approximately around the time it was discovered, I've updated LuckPerms from v4 to v5, and updated a few versions up EssentialsX dev builds, if it could be related to the issue.

I recommend asking for help on the Discord support server since this seems to be a usage related question. There are quite a few people there that would also be able to help you track down your permission related issues.