Same, the locking on the anvil makes it think that there is only one ingot. 9/10 times it makes a dagger blade even if I have more than one ingot on the anvil. This is worse than the Greatsword or the day 12 glitch.
If you disassamble a weapon then it will glitch and you will have to buy a new grip and the other thing (I'll edit it if I remember how it's called and if you take a ingot from the anvil it will glitch and you will get a dagger wilst trying to make a shortsword etc