Didn't play the previous version since was too minor an update for me to bother with (since all it changed was name colour and a few bugs, as I understand), but in the last one before that used to re-roll, hence confusion. Can understand the change to halfkin too, just seemed odd to me given the rather obscure nature of the chosen numbers.
Double checked Ralph's tweaks were on, and they are, but still experiencing the same issue with unique characters. Emily, as previously mentioned, has a ludicrously long list of genetics that doesn't seem to change for me even when start a new game. Just tried it and got the exact same list (below).
The issue with non-demon child is based primarily on my main being a pure demon. Since that means the child will always be at least 50% demon, then the only way another option is possible is if the other is 50 as well. Therefore I need to have him breed with a 100% whatever for there to even be a chance, because otherwise the genetics passed over will be under 50 and thereby excluded in favour of demon.
As example, if breed main with 100% feline, get a 50/50 demon/cat, so result could be either. But breed him with a halfkin cat, and results would be 50 demon/ 15.5 feline / 34.5 human. This means the end result will always be demon and cannot physically be halfkin cat. As it stands, the system means it's impossible for my main to have any child with a halfkin race or any other who isn't at 100% their race without the result being demon.
Whilst the fetish system would be fair enough for most part, it does cause a slight issue with the starting slave's quest line since it seems to be interfering with whatever calculates the end scene. I don't know coding, but can only assume the removal of the submissive trait is somehow removing the trigger for the ending, since it is giving the non-submissive quest ending/sex scene. If this is going to remain, then I'd think that the trigger for that scene needs to be altered somehow so get the correct ending.