I'm using 1.12.2. I used a grindstone on like 11 sticks that were enchanted with knockback, and when I took the items, it took one of the enchanted sticks, leaving 10, and gave me 11 unenchanted sticks. Ended up duplicating it to nearly a stack. I'm not sure if this is important, but alongside this mod, I'm using BetterFps, BiomesOPlenty, foamfix, Optifine, Pixelmon, and Forgelin.