I don't believe 70% humidity to be high enouph. They could have been infertile but I would say humidity in the 90% range or more actually.
:I have in the last two or three months had four sets of eggs from two leo's. I was incubating them in a hovabator with a turbofan at 89 degrees and right around 70% relative humidity. Within several days, each egg has dimpled and collapsed. What am I doing wrong?