World specific permissions not working in PEX

Im having problems giving all the needed permissions in PEX.
I am trying to assign the Builder rank permissions to build on 2 specific worlds "arenabuild"
and "spawnbuild" yet it is not working, the Builder rank is unable to break any blocks, nor does he
have access to the gamemode command. I am definitely on the right world but it does not work.
Any ideas? I am using Multiverse and PEX

Code:

groups:
  Member:
    permissions:
    - essentials.help
    - essentials.rules
    - essentials.motd
    - essentials.afk
    - essentials.delhome
    - essentials.help
    - essentials.kit
    - essentials.list
    - essentials.mail
    - essentials.mail.send
    - essentials.me
    - essentials.motd
    - essentials.msg
    - essentials.ping
    - essentials.r
    - essentials.rules
    - essentials.seen
    - essentials.signs.use.disposal
    - essentials.spawn
    - essentials.suicide
    - essentials.tpa
    - essentials.tpaccept
    - essentials.tpahere
    - essentials.tpdeny
    - modifyworld.chat
    options:
      prefix: '&7&lMember&r &7'
      default: true
  Builder:
    inheritance:
    - Member
    worlds:
      spawnbuild:
        permissions:
        - essentials.fly
        - coreprotect.inspect
        - coreprotect.lookup
        - coreprotect.rollback
        - coreprotect.co
        - coreprotect.core
        - worldedit.*
        - multiverse.help
        - multiverse.access.*
        - multiverse.teleport.self.*
        - multiverse.core.modify
        - multiverse.core.import
        - essentials.tp.self
        - essentials.sethome
        - essentials.sethome.multiple
        - multiverse.core.list.worlds
        - worldguard.region
        - ItemRestrict.bypass
        - worldguard.build.*
        - essentials.gamemode.all
        - worldguard.fire-toggle.stop
      arenabuild:
        permissions:
        - coreprotect.inspect
        - coreprotect.lookup
        - coreprotect.rollback
        - coreprotect.co
        - coreprotect.core
        - worldedit.*
        - multiverse.help
        - multiverse.access.*
        - multiverse.teleport.self.*
        - multiverse.core.modify
        - multiverse.core.import
        - essentials.tp.self
        - essentials.sethome
        - essentials.sethome.multiple
        - multiverse.core.list.worlds
        - worldguard.region
        - ItemRestrict.bypass
        - worldguard.build.*
        - essentials.gamemode.all
        - worldguard.fire-toggle.stop
    options:
      prefix: '&6&lBuilder&r &7'
      default: false
  HeadBuilder:
    inheritance:
    - Builder
    - Member
    permissions:
    - multiverse.*
    worlds:
      spawnbuild:
        permissions:
        - worldguard.*
        - coreprotect.*
        - essentials.gamemode.all
      arenabuild:
         permissions:
         - worldguard.*
         - coreprotect.*
         - essentials.gamemode.all
    options:
      prefix: '&9&lH. Builder&r &7'
      default: false
  Mod:
    inheritance:
    - Member
    permissions:
    - essentials.sethome.multiple.staff
    - essentials.helpop
    - essentials.home.others
    - essentials.warp
    - essentials.warp.list
    - essentials.tp
    - essentials.vanish
    - essentials.vanish.see
    - essentials.tempban
    - essentials.tempban.offline
    - essentials.kick
    options:
      prefix: '&2&lMod&r &7'
      default: false
  Admin:
    inheritance:
    - Member
    - Mod
    - Builder
    permissions:
    - essentials.*
    options:
      prefix: '&c&lAdmin&r &7'
      default: false
  Developer:
    inheritance:
    - Member
    - Mod
    - Builder
    - HeadBuilder
    - Admin
    permissions:
    - '*'
    options:
      prefix: '&5&lDev&r &7'
      default: false
schema-version: 1
users:
  15cc9c10-69ef-414a-b4cc-101ad47a1df3:
    group:
    - Builder