The temporary HP gained after resting seems to fade away after some length of time. I'm not quite sure what causes the loss, but it's definitely fading before I've entered into any sort of combat.
Rest, transition, and see if it remains. I hope it didn't revert back to its old bug.
Seems it is transitioning that causes the Temporary HP to disappear.
That's the old bug. It was fixed for a long time, but back. :(
Advising against taking this perk at the current moment, for it still does not work as .. well, at least I can't imagine it works as it is intended. I. e. your temporary HP go away upon transitioning.
Even if it's intended to work that way, I'd guess you can find something better, heh.
Yes, it is disappearing upon transition.
This is still an issue with the HP disappearing as soon as you pass through a transition i.e. no use as it is gone before you get to the fight!