##When i trying to make some psidust from redstone at first cad minecraft crashed. There was a sound like a explosion, and i dont have gui with psi level.
Crash log here:
http://pastebin.com/UUSAKiTi
Crash video:
https://youtu.be/JZya2v57LSI

Seems this is forge bug, but you can just comment some sounds effects for better times)