See linked Github for full report. Would be grateful if you could help!

EssentialsX/Essentials#3449

Thanks!

run /mv debug 3 and the do the relevant teleport actions. after which, send the logs here via www.pastebin.com

enforceaccess is off from your log. Check that in mv config.yml it is set to enforceaccess: 'true'

Also to add on, if you modify your config and it resets, it's because when the server gets reloaded or restarted, it overwrites changes. You must shut down the server, re-open the configuration file, modify the file, save it and turn the server back on.

That is very interesting to know, thank you so much for resolving. I'm not sure why our config reset!

No problem! ;)