Yes, this is what happens unfortunately. I tried this challenge a couple of months ago because I was incredibly bored and I didn't enjoy the 100 Baby Challenge as much as I thought I would. I really hope the Sims team will fix this thing with a patch or something because the light blue and lavender hair colors are two of my favourite in the game, they are even prettier than some of the custom ones I've downloaded. Maybe it has something to do with the rating of the game? The unnatural hair colors for kids I mean.
