Happens with me too. Firstly, new children in all played but not active at the moment households didn`t enter the dynasty but got titles. For now, they stopped even get titles (several families, all or at least one of the parents into noble career, all of the parents are part of some dynasty).
Here are a couple of examples: it is all played households, but I was actively playing another one at the time all these children were born (stories disabled for all of them).
1) A child not only didn`t receive any title, but was also born "secret" (their parents are married and live together, but from different dynasties in this case).
2) Parents are not married, they are from different dynasties, but at first I wasn`t able to start a secret romance between them (no available option), at second - all their children are born legitimate even though they are actually not. None of them didn`t go automatically to some dynasty; I added them myself.
I got an absolutely random legitimate/secret child flag in any case (parents married, inmarried, secret lovers, not secret lovers, one or different dynasties, no matter, played or unplayed, initiated pregnancy by player or by stories/mod, it is random if I am not present at the moment of birth), but absolutely none of them joined the dynasty without me doing it by hand.
It really kills the dynasty's purpose.
A couple of my dynasties were no longer available because their descendants didn't join automatically, so I had to do "dirty fixes" and a really crazy scheme to "revive" them with mods' help. It is not supposed to work like that; it simply is not fun.
The Sims Team
