I read from steam forums that the upcoming 1.1 patch has about 1000 bug fixes and kingdom management gets reworked somewhat. I would like to have more knowledge as to why things are going wrong and how to fix them.
For example, if your BP drops below 0, your kingdom status drops by 1 , it happened to me in chapter 2 and it went to worried state and stayed there for like 2 chapters. As I was leveling up advisors, it suddenly went up to stable.
Speaking of BP dropping, better make sure you have good surplus of it always, if you get hit by the thiefs have broken into treasure event card, it decreases dramatically. In chapter 5 I think i got hit by for -400 or -500. Barely had enough to stay above 0. You get most of it back if your advisor deals with it but if the kingdom status dropped it doesn't rise back again.
Speaking of BP, I think I started to get BP from regions when I leveled my economy advisor to level 6.