After beating the boss and forging an item once, i cannot repeat the process. More specifically, cannot interact with a central part where you're supposed to put an ore. Quest log says that i should be able to use it again if i have more ore, so i guess this is a bug.
Yeah, we had this bug happen. I strongly suggest doing all your forging all at once if you can. You will be able to make exactly two items before the forge breaks on its own.
I made 2 x Scimitars!