They were due on the 16th in the pm. The first Polish pipped in the in the morning of the 16th, but Polish often hatch early. The last few stragglers hatched on their own during the night sometime (24 hours after due date).
I assisted three this morning that had zipped before I went to bed and still had not emerged. They were glued to the shell so I doubt they would have gotten out on their own. The Cream Legbar with the unabsorbed yolk was one I helped. In her case, the yolk had been absorbed off the wall, but had not fully absorbed inside. She had a hard bubble on her rear. Not sure she will make it.
One of the Polish that zipped, died before I could help it out. Poor thing. I am always afraid to help too early, but in this case, I waited too long. You just never know. I usually only assist when I think the hatch is done.