So my capstone power - Elemental Apotheosis: Air - randomly turns itself off during quests but leaves the animation on. Anyone else experience that?

I died in a poison trap and was like "huh?" since, when I have that on I'm immune to poison traps. Then I noticed it off - and down 100 fort (so if you suddenly take waaaay too much damage from a melee mob, it's probably off). It seems to turn off after going through portals or exiting quests.

My work around is to constantly bring up my character sheet to see if it's applying bonuses or not. That or just toggle it on/off to make sure it's on every so often.