Why does this happen?

I don’t get it — every once in a great while, the NCMEC will put up an age-progression of someone, then mysteriously remove it and not replace it with another. It happened with Mikelle Biggs (see her AP on her Charley Project page here). And I just noticed it happened with Fawn and Rozlin Abell. Their APs (Rozlin and Fawn) were put up a little over a year ago. And now they’re gone.

Sometimes someone (the families?) is unsatisfied with the original AP and the NCMEC makes a new one at the same age. In which case I’ll post both. But I don’t understand this business of just making them mysteriously disappear.