Hello everyone! I've got something strange going on that I haven't been able to diagnose myself, so I am asking for your help. I had set 16 eggs that were due this Friday. All but 3 came from my own female. Just one female. So yes, I know several were older than ideal for hatching. I expected maybe 7 at most to make it to lockdown. All 3 eggs that weren't mine died before day 12. They came from the flock that my own pair originated from. One had a cracked shell, which I taped and tried to hatch but it didn't develop. One had literally no air cell, but developed until about day 11. The other didn't develop at all. Of my eggs, the ones older than 10 days were clears as was to be expected. That left me with 9 eggs. Then a few days later 6 more had died. And just yesterday, day 17, I lost another. So I have 2 viable eggs left. This incubator is at proper temperature, dry hatch at 23%(+/-)RH and has had 3 successful hatches before. Even stranger is that the week before I set these, I sold 7 eggs from the pullet with the freshest being 1 day old and oldest being 9 days old. The eggs were not shipped, direct pickup. Report came back that 3 had early deaths, and by second candling (I presume day 18) 3 more were dead. 3 hatched. So does this sound like a diet issue or something else? Pullet is 9ish months old and been laying for 2 months. She is fed Purina Gamebird Chow. Not been medicated for anything. Previous hatches from her (counting only viable eggs) were 75%, 57% and 33% so a noticeable decrease in hatch rate as time went on. Thanks for reading, if I need to clarify something please ask.