Yes. The duckling is positioned backwards and is trying to pip on the pointed end. It is very tricky work, but I have successfully hatched wrong-way duck babies. Carefully score shell where the dark stain is, find beak and free beak/nares to breathe. Then once the others have hatched out, you can slowly hatch the wrong-way baby. Good luck!!
Yes, this happens often with the silkies and showgirls. You do as Iain has said here, just take your time through out the day to pick away at the shell. It may take the whole day if you are getting fresh blood. Good luck, hope the baby is ok in there! Let us know.