Are you getting this error when ranking up?
it is because how the custom ranks and pex works.. basically this happens only if one or all of these reasons are met:
• you used
when giving someone a group like
/pex user <user> group set <group>
which is wrong bec it will override the other ranks. (you must always use
• you added a new groups to pex and didn't set up their weight which will become the first priority and override ranks
• you added a group to the player while they are at rank A which is a bug or a bad thing in pex bec the default group is A but pex doesn't add it to the player it just uses it as a default group if player has no groups and when you add a group to them they lose the rank.