Bukkit

Teleporting between worlds crashes some clients!

Minecraft server: Spigot 1.8.3

Crash detected on two Dell / Debian Wheezy (linux) clients, teleports work fine on Surface Pro 2, Surface Pro 3 / Windows 8 clients.

Plugins:

Essentials
MultiWorld
Location Teleport
WorldEdit
WorldGuard
PermissionsEx
StarterKit

What steps will reproduce the problem?
1. Define teleport from a survival world to a creative world. Loc1 in survival, loc2 in creative.
2. Run over teleport loc1

What is the expected output? What do you see instead?
The loading screen shows but rather than eventually popping up with the new world location, the client disconnects and remains in the loading screen! Once you restart the minecraft client again, you can teleport from loc2 back to loc1 as expected but attemting to teleport back from loc1 to loc2 crashes the client again in the same way.

What version of the product are you using?
3.0.2

Do you have an error log of what happened?
No

Please provide any additional information below.
Server log only lists that the user disconnected at the time of crash. No errors.

Teleports.yml:

Teleport1:
  type: location
  Direction: duplex
  permission-required: false
  loc1:
    World: world
    X: -217
    Y: 64
    Z: 275
    vector:
      X: -0.05494276295301992
      Y: -0.015707059974018975
      Z: 0.9983659554822873
  loc2:
    World: creative
    X: 12
    Y: 67
    Z: 10
    vector:
      X: 0.04183514397110493
      Y: -0.04449143665272072
      Z: -0.9981334243444079

config.yml:

updater: true
check-updates-on-start: false
direction:
  remember-directions: true
messages:
  teleport-messages:
    op-message: true
    broadcast-teleport-message: false
  permission-messages:
    no-permission-message: false

Did some more testing: using the MultiWorld commands to teleport between worlds also crashes the client when going from survival-world to creative-world. Looks like this is a MultiWorld issue not LocationTeleport.