I used a Scroll of Deception on my helm, which was a gladiator's helm. I had the 4 piece set bonus before I used the scroll, and after I use the scroll I lost the set bonus. The game is no longer recognizing my helm as part of that set bonus.
Not sure where I should have posted this, but this is pretty game breaking for me right now, considering I just spent 10 coins on the scroll.
