My favourite weapon, edge of concurrence received a "rework" (horrific nerf) recently, and in doing so now hardly makes use of its exotic perk, which allows the alternate fire. While this isn't an issue in and of itself, the way it counts hits for melee attacks for enabling the perk will only register one hit at a time. For example, if you hit multiple enemies, it counts as only one. Like I said, I don't know if this is a bug but I'd appreciate it more than anything if Bungie could take a look at it.