FearLess Cheat Engine

Is the overmastery editor not working anymore? I try it to do like it says in the text box but it just wont change.

Can someone explain to me how to replace a weapon in your Item Box? For example I have the Safi Aquablade but want the Safi Shatterblade instead.
Cheers

So my game keeps crashing as soon as I activate Ignore Crafting Requirements. This is on a fresh install without the High-Res Texture pack.