But its not only World(Edit|Guard) or Craftbook only ... It's all ! And only for 2 groups.
And about inheritance, ive made care about full rights...
All permissions, commands like /home /spawn /god ... All :).
I've tried with Permissions 2.5.5, same bug.
EDIT by Moderator: merged posts,...
Permissions 2.6, edited by vi and again by Notepad++.
World : only one named "r0x".
Plugins : WorldEdit, WorldGuard,...
Separate names with a comma.