Information

Full output of /ess version: 2.0.1-b525
(my build of EssentialsX doesn't have /ess version, but looking through the commits for this project, I don't see the issue I'm about to detail being addressed yet)

Server log (upload logs/latest.log to Gist): https://gist.github.com/KAGamerAlex/b637f9bf989e7df86aef5afc4d29ecdf

EssentialsX config (upload plugins/Essentials/config.yml to Gist):
https://gist.github.com/KAGamerAlex/78547e8c2efe2fb109c2575c46d6e726

Details

Hi all. We have permissions configured such that our default group has access to the following:
• essentials.nick
• essentials.nick.color
• essentials.nick.changecolors

This allows them to simply change the color of their username, but not the actual characters of the username in their nick, as expected. However, if these users try to use /nick off, it won't work. Clientside, they get:
[01:09:45] [Client thread/INFO]: [CHAT] Error: Nicknames can only have their colors changed.
[01:09:58] [Client thread/INFO]: [CHAT] [Islander]~KA_Gamer: eyyy, I fixed a bug (included for reference to server's log)

You'll see in the latest.log file a corresponding attempt to do /nick off at line 1467 (there is a difference in system time between the server and client by an hour and a few minutes because of timezones and such) :
1467: [02:10:06] [Server thread/INFO]: KA_Gamer issued server command: /nick off
1471: [02:10:19] [Async Chat Thread - #4/INFO]: [Islander]~KA_Gamer: eyyy, I fixed a bug (included for reference)

I know there was an with "nickNamesOnlyColorChanges" not being present in the message.properties file, and I've made the necessary changes to correct that. However, the lack of access to /nick off remains an issue.

This is a bug - the changecolors check happens before checking for /nick off.

This has been fixed in the latest build of EssentialsX - grab it from the build server.

The update did not fix this for my server.

@IITFA Could you open a separate issue, filling out the relevant template?