That's awesome about the eggs!!! I wish we were all hatching together but we will in the spring!! I've decided to get the octagon 20, for my birthday/christmas (same week). That way I'll be in business come spring!! Then we can DUAL. Yes, I spelled it that way on purpose.
I found a thread on the geese forum about detached air cells and this thread was filled with pics of exactly what I'm dealing with. They had fluid in the air cells too but never specified what is was. Someone asked if it was amniotic fluid but no one knew. That's why I asked here. And normally you're right about movement but not with this kind of damage. Usually when I do shipped eggs, I have solid air cells by day 5 and then I just treat them like local eggs. Here's a copy & paste bc my version was 5x longer and less coherent.
"Allow shipped hatching eggs to sit in an upright position in incubator without turning for the first 7 days; this allows air cells to stabilize and gives the germ time to organize and get a healthy start without constantly being moved disturbing delicate vessels and cell formation. Shipped eggs most likely suffered some damage, constantly disturbing this formation will give lower hatches."