Player Frame not detecting full health on Demon Hunter

[Eulogee]

I have my player frame alpha set to 0% when I'm at full hp and not in combat, but for some reason on my Demon Hunter my player frame was always displaying. I messed around with all of the different alpha options and the 'injured' (I don't remember the name of the actual option) slider seemed to have an effect. I'm at 100% hp, bandaged, ate - nothing seems to make this bar fade out when I'm out of combat like it should.

Any ideas? I have it set up now so I still have a clean screen, but I'd actually like it to display my health if I'm not at 100% hp.