Oh my... I’m so very sorry!!!!Update non of my duck eggs hatched they were all fully formed and airsack looked about right at the end. I guess they all died before they hatch well I won’t be attempting Muscovy duck eggs in the incubator again. It wasn’t all bad though my shipped eggs with the crazy looking air sack hatched, I was very surprised. The ones that developed hatched, I threw out two eggs that had development in it. I didn’t see any blood vessels in them like I did the other four so I thought the chicks died, around day 14.