For the second egg, is there any bruising on it? Dark patches?
Keep an eye open for this, as it could indicate another malposition.
In the case of a bruise, the duckling is unable to get through the shell and would need assistance in the form of an air hole.
If you see any new dark patches...
I'd try and get the humidity down closer to 70
Here's the thing. A pip outside of the air cell (on the pointy end) is the equivalent of both an internal and external pip, so it can be up to or over 48 hours for the duckling to be ready to hatch and pop out. Currently she'll be absorbing the...
Is that pip on the big end or narrow end of the egg?
Ducks can take days to hatch so give it a little more time
If the shell is cracked, the membrane is pierced