ArrayIndexOutOfBoundsException when attempting to craft a chisel using Amethyst from Blue Power

[MastaC729]

It tries to give me an Peridot Chisel -1 when crafting a chisel using a Blue Power Amethyst. It immediately crashes the client after trying to perform the recipe, with no server crash. Here is the stacktrace:

http://pastebin.com/fjmuUcpw

Let me know if you need any more information.

EDIT: It also tries to give me an Amber Chisel -1 when using a BoP Ruby. Then when I tried crafting a sapphire chisel using a ProjectRed sapphire, it initially showed a ruby chisel.