Information

Full output of /ess version:

<!-- Run the command in your console, and copy and paste the whole output here -->

Server log:

EssentialsX config:

Details

Description
I am unable to disable the essentials.keepinv permission using -essentials.keepinv as a OP

Steps to reproduce
I tried to add -essentials.keepinv but it does not follow my permission and forces me to keep my inventory

Expected behavior
The inventory keeping will disbale

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I downloaded LuckPerms to do this. You should do the same

Yeah I'm assuming this is due to some outdated permissions plugin. I've seen several reports of this over the last few days, and as @Charkel mentioned it is easily fixed by downloading LuckPerms (or some other permission plugin that properly handles these negated permissions).

Closing since this is effectively answered, and has prompted no further discussion.