Essentials walk through portal permissions

I'm using the Essentials multi-world for the nether and normal worlds. I have no issues as an admin walking through the portals and it warping me to the Nether or back, but it seem's it wont work for my regular members. They can type "/world nether" and that works, but walking into a portal wont.

Any idea what I need to set my permissions too for them?

Essentials (latest)
GroupManager

Essentials config

Code:

# Nether settings (switch between worlds with "/world nether" and "/world normal")
# Sets whether the nether system is enabled, what folder to save the world in, and whether portals should teleport players between worlds.
nether:
  enabled: true
  folder: nether
  portals-enabled: true

GroupManager config

Code:

 Guest:
    default: true
    permissions:
    - essentials.list
    - essentials.mail
    - essentials.mail.send
    - essentials.rules
    - general.spawn
    - jail.usercmd.jailstatus
    inheritance: []
    info:
      prefix: '&e[Guest&e] &7'
      build: false
      suffix: ''
  Member:
    default: false
    permissions:
    - essentials.afk
    - essentials.home
    - essentials.ping
    - essentials.rules
    - essentials.sethome
    - essentials.world
    inheritance:
    - guest
    info:
      prefix: ''
      build: true
      suffix: ''