0.4.44a
Win 8.1
Something wrong going on with some chars (it can be like that, on existing play, or even a freshly started game). Most of the times it's incurable.
Probably it's the interface problem, since they can be successfully assigned to work they can be assigned (where there are checks, they work correctly, it's just my can't see)
Sorry for the quantity of screens (and I'm too lazy to edit it into one pic), but it's still better than wording the whole problem with a wall of text :)