Permissions rankup help...

Ok i have a prison server we used to use g/m but i changed to pex cus of uuid's

But now when people rank up it only ranks them up in 1 world not all of them

This is the permissions file i have atm

Code:

groups:
  A:
    default: true
    prefix: 'A '
    build: false
    permissions:
    - essentials.warps.a
  B:
    default: false
    prefix: 'B '
    inheritance:
    - A
    build: false
    permissions:
    - essentials.warps.b

But when someone ranks up it works... but when they change world their rank is back to "A"
and when they go back to the other world they ranked up in they are "B" again
How do i make it so it ranks them up in every world?

~Thanks Bradley