I am just SW of Raleigh. If a baby is not used to eating greens it is hard to get them to start. I have all of mine eating them at a week old and so far they have all gone to their new homes eating mustard greens and Rep-Cal Juvie pellets. There are a few others from NC on here.
Welcome to bd.org. Where abouts in NC are you located? I live in Apex. Your baby should be getting 1/4 inch, if not 3/8 inch crickets. I feed hatchlings 1/4 inch and then go up a size after a few weeks. The 1/8th inch are going to be tiny.