So I've had a pretty awful run of my hatching. Most make it to lockdown and then die. Majority of those are fully developed with yolk absorbed and everything. I thought it was with shipped eggs, but tried local and still had a bad hatch. I researched and I can't remember what it is but theres a bacterial infection that I think it is, because the dying after fully developing, and my chicks all had scabby navels which was another symptom. But I bleached it and washed it with vinegar and then set it out in the sun. What should I do?