Good luck, Cher! These are the slowest bunch I've ever had, but I know for sure there was one section of the bator that was cooler than it should have been so that may be what's going on. The Flukers digital thermo/hygro was so thin, it used to fall between the rows of the turner, so I used one of those plastic trays that microwave meals come in and cut a "card" for it to be attached to that is an inch wider on all sides than the unit, for a wider base. I didn't move it around the bator like I usually do and those eggs under that card probably didn't get the heat they should have had.