Turtle_Bot wrote: »Heavy attack builds have never truly been good in PvP outside of a few specific patches where HA ganking was overpowered thanks to broken set procs that proc'd off heavy attacks (when combined with stealth it made for easy free kills).
The bug that OP speaks about though (randomly stops working) is one that has been around in PvE for ages now. The issue has been raised/complained about and still no fixes yet.