So I've started a new game (not the campaign), finally married and had kids.  A couple of issues popped up.

1: The tree isn't properly branching out.  At the top is the bride and a baby picture which when you click on will go to sovereign and a couple of his kids.  At the bottom is only one son who is permanently at 6 years old (he has actually come of age outside the dynasty tree page).  3 of them are married but still only the first son shows who he's married to on it.

2: All kids are cookie cutter replicas of their parents (sons copy father, daughters copy mothers), same profession, same specials only the stats are different. The background story even has their parents names still on it instead of theirs.

*Note: if this helps I'm playing as a custom faction and a custom hero.