Humidity is for air cell development.
Not absorbing the liquid is a development problem. It comes from a lot of reasons.
If the air cells developed correctly then keep the humidity the same.
Work on:
Flock health(can't do this with shipped eggs)
Temperature during incubation
Turning
add a cool down cycle
Consider misting during the cool down cycle.
Another way to measure air cell development is to use the weighing method:
https://poultrykeeper.com/incubating-and-hatching-eggs/weight-loss-method-forl-incubation/
Thanks. I had an unexplained heat spike that killed some of my chicken eggs early but didn't seem to affect the quail. I had a light bulb burn out while I was sick and didn't catch it for at least 8 hours. The big problem is that they are in the basement where the room temp was between 55 and 60. The STC-1000 keeps it working in that temp but if it loses a bulb for too long your SOL. So I will be changing out at least one of the bulbs for one of the heater rods that I have from an earlier attempt at building a bator. I like the rods because they are not as prone to burnout but I need to rig a viewing light if I go strictly to those, I have 109 Texas A&M's in there now. I am feeling better and being diligent in getting the eggs turned at least 3x/day.