The recipe JSON has the id tfmg:pumpjack_hammer_holder

but the item ID is tfmg:pumpjack_hammer.

Found this in my kubejs warning logs (and the recipes for colored concrete as well), which reference a mesh_concrete ingredient that doesn't exist.

The pumpjack hammer recipe doesn't really change anything since create still automatically loads the manual crafting recipe.

I've also found this when poking around in my logs

Seems to be a dup of #45 which also reports similar things. For the colored concrete, I was able to remove the log warnings in kubejs by having:

e.remove(/^tfmg:colored_concrete\/full_block\/[a-z_]+concrete/)

but this is overly aggressive and removes all the regular recipes as well. Also possible to do by just removing references to mesh_concrete inputs.