My PEX bug

groups:
  default:
    default: true
    build: true
    permissions:
    - -bukkit.command.kill
    - -essentials.back.ondeath
    - -essentials.signs.create.warp
    - -essentials.back
    - -factions.map
    - essentials.rules
    - essentials.helpop
    - essentials.msg
    - essentials.r
    - essentials.reply
    - essentials.tpdeny
    - essentials.tpa
    - essentials.tpaccept
    - essentials.sethome
    - essentials.home
    - essentials.delhome
    - essentials.signs.use.warp
    - essentials.warps.spawn
    - essentials.warps.forge
    - essentials.warps.jail
    - essentials.warps.shop
    - essentials.warps.help
    - essentials.warps.pvp_hut
    - essentials.warps.pvp_west
    - essentials.warps.pvp_north
    - essentials.signs.use.warp
    - essentials.ignore
    - essentials.mail
    - essentials.mail.send
    - essentials.warp
  Co-Owner:
    default: false
    permissions:
    - essentials.ban.exempt
    - essentials.kick.exempt
    - essentials.mute.exempt
    - essentials.kick.notify
    - essentials.mute.notify
    - essentials.ban.notify
    - -essentials.antioch
    - -bukkit.command.whitelist.add
    - bcombatlog.ignore
    inheritance:
    - Admin
    options:
      rank: '100'
  Owner:
    default: false
    permissions:
    - essentials.ban.exempt
    - essentials.kick.exempt
    - essentials.mute.exempt
    - essentials.kick.notify
    - essentials.mute.notify
    - essentials.ban.notify
    - -essentials.antioch
    - essentials.itemspawn.exempt
    - essentials.helpop.receive
    - essentials.invsee.modify
    - bcombatlog.ignore
    - permissions.user.demote.<ladder>
    - permissions.user.premote.<ladder>
    - '*'
    options:
      rank: '10'
    inheritance:
    - Co-Owner
users:
  bdog20012001:
    group:
    - Owner
  larw0603:
    group:
    - Co-Owner
  massdestructo27:
    group:
    - Co-Owner