No Charge Generation From Soul Cores With Talisman/Bear

Using the Amor Mandragora Changeling Talisman with one 50% chance to gain an additional frenzy charge soul core and one 50% chance to gain an additional endurance charge soul core (for testing) and the resonance keystone. Spending Rage to generate endurance charges (which are converted to frenzy charges via Resonance) never results in an additional frenzy charge.

Actually with some further testing, it appears the soul core effects don't stack with serpent's egg which was producing this behavior. Not sure if this is intended.