I have two broody Easter Eggers. They had 6 eggs. Broke 4 in the first few days. The 5th. They crushed as it was starting to hatch the last one Is late to hatch, but the shell is broken - looks like from the out side membrane not broken. Chicken does not seem to be moving. Why are they breaking the shells?
You can try with one of the broody's. It's hard to say if either will continue to incubate. I would put the remaining eggs in an incubator/hatcher. Depends on what you want to do. Good luck...