Craft a rocket but all other blocks eccept firework star, sulphur and paper won't effect anything
Environment
If you'll craft a rocket it will not change the output if you place iron into the crafting recepie of the rocket or not it will still be the same but costs iron.
This still happens with the 2-sulfur and 3-sulfur configuration, though. All sulfur is used up, but the resulting rockets are all exactly the same, and even stackable.
This was fixed in a previous version.