Bukkit

What steps will reproduce the problem?
1. Dying
2. Spawning
3. First join

What is the expected output? What do you see instead?
I expect players to be spawned randomly. No matter whether players die or first join etc, they spawn in the world spawn and nowhere else however they still see the random spawn message 'you wake up in an unfamiliar place'

What version of the product are you using?
Randomspawn version 2.6 SU for CB 1.5.1-R0.2

Do you have an error log of what happened?
There are no errors in the logs

Please provide any additional information below.

The plugins I am running on my server are:

Alphachest
Bukkitcompat R22A
EnjinMcplugin
Chatmanager
Essentialsspawn
Essentialsantibuild
Essentialsprotect
Essentialschat
Essentials
Log block
Mcmmo
Multiverse (have tried removing)
Mycommand
PermissionsEX
Redprotect
Reporter
Scheduled announcer
Vanishnopacket
Vault
World edit
Worldguard
Votifier

I have tried using it with and without the RandomSpawn.spawn node.

My config file shows as:

world:
  randomspawnon:
  - respawn
  - bedrespawn
  - firstjoin
  keeprandomspawns: true
  spawnarea:
    type: square
    x-min: -10000
    x-max: 10000
    z-min: -10000
    z-max: 10000
    thickness: 0
  spawnblacklist:
  - 8
  - 9
  - 10
  - 11
  - 18
  - 51
  - 81
  randomspawnonfirstjoin: true

I have tried different co ordinates and setting keeprandomspawns to false but experience the same issue.