What happened?

The recipes want the c:diamond tag, but that doesn't exist in Forge. Should be forge:gems/diamond instead.

(Also, there's no option for 1.20 in the drop-down on the issue form)

Mod Version

5.3.0

What versions of Minecraft does this issue happen on?

1.19.3

Log

No response

This has been fixed in later versions. Busy ironing out kinks for 5.3.4. I recommend updating to that when I do release it.