
! I breed ACs too

Have for a little over four years now. They're lovely chickens.
At 30 days, I would think those eggs are no good. I would toss them. Perhaps open them up before you do to try to see what went wrong.
It's very possible that the thermometer and hygrometer that you have aren't correct, so you'll want to calibrate them to make sure.
Correct temperature depends on your incubator - is it still air or forced air (does it have a fan)? Humidity will depend on your area and climate. I personally use 30%. I would start at 30 or 40 percent, see how that's going, and adjust if you need to.
And here's an incubating guide for beginners that you can read through too
https://www.backyardchickens.com/articles/the-beginners-guide-to-incubation.73350/