item teleportation pipes

[death_purple_me]

Title: item teleportation pipes

Version: 3.1.2

OS: windows 7

Java Version: sorry don't know, the very latest as i just had it updated a few days ago

Description of Problem:

when i clicked on switch on a item teleportation pipe it crashed the server i was on and i can't get back on, it just crashes my minecraft.

Error Messages:

Error Log:

[depokboy]

my guess would be that you are flying, either using arcana, swiftwolf, jetpack or creative. try landing before clicking on any teleport pipes.