Last night I received a monster event horizon from a blue engram with perfectionist, I didn't even know it existed on this gun so I was pretty psyched. I then discovered perfectionist wasn't working which brings me here. It's unfortunate this perk is broken otherwise my particular build could seriously be the go-to sniper and it has all the goods, longview slr10, small bore, and hidden hand. I really hope Bungie takes notice and fixes this as soon as possible. In the meantime, I'm using the alternative perk it provides,.. underdog...meh.