For all who are doubting their hatching abilities

I know it has been a tough year for hatching. There are numerous posts wondering why it looks as though chicks develop fully,then die before hatching. I just want to tell you that I think sometimes "things happen" even when we do it right. Case in point:A broody hen hatched out 4 beautiful marans chicks,had 3 eggs pipped and 2 un-pipped left. Her chicks got out of the nest and I couldn't reach them,so she got out with them. This gave me time to examine her eggs. I had left her alone up until then(I think they do better), That's when I saw the 3 pipped eggs,2 with dead chicks and one with one struggling(it had rolled over,face down. I helped it out a little and stuck it under another broody hen(it has since hatched and was reunited with it's mom).The other 2 chicks were perfectly formed and were easily peeled out of the shell. All that they needed to do was to absorb the yolk. One had a clear passage to the air,but the other had the membrane over it's beak. What went wrong? Who knows? Sometimes things happen. I still believe she did better than she would have with interference from me.