If a brief temp swings happens eggs can be OK. Hens must leave the eggs for bio breaks & the eggs cool- but still hatch. I even had a hen jump into the wrong nest on day 13 & left her eggs for a few hours. They were cool to the touch, but they still hatched. The 106'F or having the eggs at the wrong temp for several days are more harmful. A brief swing will likely mess up the hatch date (late or early), but that's all.Ok, so, I've began to incubate my eggs a few days ago. And the electricity went out for about 2hrs and the incubator went down to 89 degrees and then when the electricity came on, it end up hitting 106 degrees and it took a few tries but I finally got it back to 100. I'm hoping it wasn't at 106 too long. Has any one had this happen and still had their eggs hatch? Also, my humidity seems to bounce between 50% and 30%. And I do not open it,so, I don't know why it's bouncing around. It's a still air incubator and holds around 40 eggs and it's filled up!
Still air incubators can be more tricky. I recommend continuing to incubate & candle them around day 7. Hopefully you'll see signs of life then.