When playing as a tribal nation without any feudal or city vassals, the player may still recieve events increasing opinion of such vassals. I believe the events I got pertained to having great councillors.
I'd suggest adding a check to see if the player recieving the event actually controls any feudal/city vassals. Perhaps the opinion bonus could be applied to tribal vassals instead, but with a much lower modifier?
I'd suggest adding a check to see if the player recieving the event actually controls any feudal/city vassals. Perhaps the opinion bonus could be applied to tribal vassals instead, but with a much lower modifier?