My infant sim aged up FOUR TIMES!

I am aware that there has been an aging bug going around, where an infant, upon aging up, would age up twice, but today this bug happened to me, but it didn't stop there. My infant aged up to Toddler, then Child, then Teen, then to a Young Adult one after the other. It aged up four times! I know that I can just go into CAS and change them back to a toddler, but that's not the point. They shouldn't be aging up four times.