I'm weighing my eggs every three days or so to make sure they're losing the right amount of weight before hatch day. Every egg is on track, but I couldn't help but notice a potential issue with one of them. The egg in question has developed something that looks like hot glue on the outside of it. It's not sticky, it's a bit translucent. The egg does not have a smell. Any clues? It looks like my egg has forgotten to grow a chick, and has decided to grow warts instead.