Open 1.2.0: [1.3.4] Client crash, just moving items in my inventory

[Wackra]

Version:
1.2.0

What is the bug:
Client crash, just moving items in my inventory

Mod & Version:


Paste.feed-the-beast.com log:
http://paste.feed-the-beast.com/view/df701d5b

Can it be repeated:


Known Fix:

 

[Mikerman]

Nei causes This. You were getting blocks from the creative menu?

 

[Wackra]

Nope survival, just moving a few ore blocks about in my inventory.