if i use this commands

# Export group: default
/lp group default permission set essentials.fly true
/lp group default permission set essentials.fly false server=survival-dzialki

still i can use /fly command on this specific server

timings
https://timings.aikar.co/?id=5620198d95914ff0bf338d471f284d14

• Are you sure the server setting is correct? (/lp info)
• Are you sure you're a member of the default group?
• Are you sure there's not some other permission overriding it?
• https://github.com/lucko/LuckPerms/wiki/Setup#essentials

Are you sure you're a member of the default group?

Are you sure there's not some other permission overriding it?

https://gist.github.com/KonoromiHimaries/b098664cb2aaeeaf7010427fb387a824

thx. works with
/lp group default permission set essentials.fly false server=sd