Oh dear. I feel dumb for reporting something already known
Since it's called an issue by you, is this hopefully something that will be fixed? I'm guessing that them being global somehow makes the game think you've never left their "presence" and that's why the bar doesn't decay?
Oh before I forget thanks so much for the quick reply and from the creator of all people!
EDIT: Out of curiosity, if this is fixed, hopefully it won't necessitate an entire restart of a campaign?