Update, the very moldy egg and the little bit of moldy egg attached to it are still moldy.
All the other eggs are fine so far.
So it looks as Deb said.
The mold is at the top, and not the bottom where it sits in vermiculite. I believe it was condensation dripping from the plastic wrap.
I removed the wrap on the 4 clutches and just put back the snap close lid, as the Saran wrap can sag if not careful!
2 out of 27 is acceptable, I suppose.