Three of the four eggs died.

[BP_Dad]

When you say the temps in the incubator are stable, where is the probe located vs the location of the eggs?

Sometimes there can just be issues with a particular pairing. But it is really tough when they look like they're doing okay and then just never make it out. I'm sorry for the loss regardless.

The probe was in an egg box, on vermiculite. In addition, I measured the temperature in different parts of the incubator and it was 88-89 degrees.