The adults do walk all over the babies. The one off by himself? YOu'll see a lot of that. Either he hung on nursing when mom went to leave, and was dragged off, or she moved him, but they sometimes move babies around, or they will crawl around. It doesn't seem to bother them at all, I sometimes put them back, sometimes leave them. Give them a couple days and you should see darkening of the skin. They very well could end up all albinos, if the dad carried albino too.
Give mom some treats from me! And congrats!
Wolfy