I see what you're saying. It has occurred to me that they may have been losing fluids at a different rate. But I expected them to lose fluids relative to their size, meaning the larger they are the more fluids they lose. So overall it would be the same percentage.
Most of the larger eggs didn't make it. When I weighed them they had lost only 10% or less of their weight on day 28.
My humidity was around 50%. On inspection it seems like they drowned due to too much liquid in egg. All we're fully formed but couldn't make it out of the inner membrane.
My...