Iron bucket cast seems to get consumed:

I do not see a config option to disable this... so is this intentional?

Are you playing a modpack? The recipe in the code does not consume the cast.

Try reproducing with just Tinkers Complement and it's dependencies. And make sure you are on the latest version (what version are you on?)

Im so dumb, this was a recipe that I added on my own to clean up the bucket casting process, I set to consume cast to true without realizing lol