That's promising, at least! I'm sure it's more work now, keeping too much condensation from dripping on the eggs, but if the change helps . . . Fingers crossed, certainly.
It depends. Mixing the air keeps temps even throughout the incubator, but moving air can also wick moisture away from eggs. Some systems seem more prone to this than others, I don't know why.I guess no fan from now on.. But isn't it important to have airflow?