What version of the game you are running.
Running 0062 - Windows 64 bit
Description of any issue or error message
When ingots snap to anvil it often doesn't recognize how many are attached and will produce a small blade, and leave one ingot attached.
Doesn't always happen.
An image(if possible)
http://imgur.com/a/uuQZC
Steps to reproduce the issue(if possible)
Prepare 3 ingots, snap all 3 ingots to the anvil, hit with hammer.
System specs.
Most likely unrelated, but i7-6700HQ 24GB of ram.