So I noticed I was able to snapshot with an acolyte ornate idol, the one that gives poison protection while Aura of Decay is active. I equip the idol, and then turn on Aura of Decay, when I then unequip the idol, character stats panel still display the increased poison protection. Works the other way around aswell. If you equip the idol after activation aura of decay it wont increase poison protection until you turn the ability off and on again.
After a little testing, i figured out this is not just a display bug.