Damage nerfed with last patch

I did not know that there was a bug, and I am really bummed of this. I dont follow any build or such, I just go with what i feel like on every new character. At the current Rogue character, I have been going with pucture, penetrating shot, and crossbow/sword/dagger, to get the bonus right from the “weapon mastery” skill, to fit both my paragon and stats. The stats even out on poison(and dmg to poisoned), vulnerable, and crowd control. Overpower is not i focus, though i still have random 450 % to it. Glyphs are mainly physical dmg, crit dmg(as much X dmg as i can find), attack speed, vulnerability. I have above 1000 dex, and precision enabled. Pen. shot shows 60-75k with all combo points. I crit at 100-200k damage, after crowd control, vulnerable and poison hits. Down from 400k - 1.4M crit. This from a nerf that is not even mentioned in patch notes? My character is UTTER RUBBISH now. almost struggling to do mobs. Before I was struggling with bosses. My friend goes around with a hota barb striking millions to billions in damage. I dont understand crap of blizzards focus in this.