I specifically wrote that it is not the portrait, so why are you writing a response that has nothing to do with the issue?
It's the same issue and shows up in different ways. I can't remember when it actually started but it around the time that the number of skin tones was increased and Island Living added tanning. The portrait was where it showed up most often. It was patched but I still see it in my game from time to time as I play a long term save so that is why I mentioned the portraits. I have also seen the wrong color on the babies in my game, but not since the patch. But the gist of what I was saying is that it will self-correct when the baby ages up so the baby gets the right skin tone color that they should have as a toddler. There is nothing we players can do about it even with mods. Just have to live with it.
Hope this helps.
