Currently, when making an Elixer of Armor Piercing, the end result instead is an Elixer of Expertise.
I don't know if this is a naming mistake, bug, exploit or what. All I know is the intended result doesn't seem to match up. This is currently happening on a USA server atm.
If anyone can help confirm, deny or just plain figure out what's going on with this it'd be great.
Note: I do not claim credit for this find, it was mentioned by various people on my home server and was curious.