Green yolk sack?

[pinelli-farm]

Ok we were candeling eggs that were ready to be hatched and were dead and they were suppose to hatch by now so we opened it up and it has green yolk? its mixed in with yellow though. Is this normal? its a quail and I have never hatched quail before. It was fully developed and looks like it died maybe the day before when my temp spiked in the incubator.
any ideas?

Seems like I am doing this all wrong my first hatch

 

[MamaMarcy]

I truly have no clue, but as a nurse of humans 'green' to me usually means bacteria/infection. So sorry for your loss.