Bloodmage Perks (trying to confirm a mistake)

The bloodmage perk, sacrifice, only has its buff part triggering but not the half health. I soon found out that anything that increases hp which includes traits, and artifacts (helmets especially) with the amber that boosts hp prevent your creatures from starting full health. The ascended perk might have affected it a bit as well. I don’t know if this was a mistake or if I’m using bloodmage wrong. Also don’t the barriers that bloodmage gain prevent the perks, blood-caked blade and sanguine fortitude from triggering.