Where:
Dvergenheim
When:
After using a 20/20 steel ingot bag on the anvil, and then using a 20/20 arrowhead template. (Both alchemical and standard have same issue). Try to use hammer on the anvil to smith.
Edit: Buying 5 singular arrowhead templates, adding them to anvil and then a 5/20 steel ingot bag produced the same results.
What:
The crafting initiates and then cancels because improper materials. If you remove a template from the anvil, and then replace it, it recognizes it. You have to do this for each time, multiples did not seem to work.
Recreate:
Arrive at anvil (only attempted in Dverg), use ingot bag on anvil, use template bag on anvil, attempt to smith with hammer. Recieve error.
Ideas:
I had issues smelting, recieving iron bars instead of steel as well, maybe similar issue with bags of coal?