Minecraft Version

1.12.2

Forge Version

14.23.4.2715

Mod Version

3.1.5

Describe your problem, including steps to reproduce it

When setting the breaker module to only break dirt, it will still break grass. I have tried filtering it in different ways like blacklisting grass or whitelisting dirt and still no change.

Yeah, that's the way it works - by the item that is dropped, not by the block. One thing that should work is to make it silk touch (craft it with a Silk Touch book); then it will drop grass blocks and the filter should match.

Ah ok, I didn't know the filter was by what block is dropped.
Thank you.