Hello!

I realized I am having an error as you registered your classes twice.

Issue Description:
ERROR: system: Huge is already defined in that package
ERROR: system: Big is already defined in that package

Most recent log file where the issue was present:
https://pastebin.com/FrFKkgWK

Affected Versions:
Minecraft: 1.12.2
Forge: 14.23.5.2768
Using a server: no

Reference: CraftTweaker/CraftTweaker#663

Thank you for being so responsive!! <3

I guess I can close the issue? This will be sorted in the next version if I do understand correctly?

you are welcome =D

the fixed version is already out, checkout
I tried here, and it is working fine =P

Works like a charm, thanks =)