So I was toying with a build involving Dawnbreaker and stacking Fighter's Guild skills for the Slayer % damage, and was thinking about tossing Expert Hunter on there for more, and the passive/constant Major Savagery buff. Having +10% extra crit all the time seemed nice.

But I noticed that when I use Biting Jabs (which also gives Major Savagery), while in combat it does show me gaining two of those, my crit isn't increasing more than what it sits at out of combat with the one Major Savagery.

Is this a bug or intentional that they don't stack?

It has suddenly put a damper on the Fighters Guild-oriented crit/damage passive stacking I was trying to do.