Acne? on infant and toddlers

I play with mods and cc. My sim had a child and I noticed when she turned infant she had these marks that look like acne? I thought maybe it would disappear when she aged up or maybe it was part of an update but she still has the exact same marks as a toddler. Ive checked to see if its the same for every life stage but it disappears at child, so its only for infant and toddler. Anyone know what this is or have any fixes? Its not something in cas as i removed everything.