Hmm, membrane looks good (not dry) definitely has enough air access, the hole looks smaller than i'd expect for zipping, but the tears made in the membrane look like more than just a secondary pip. Give it about 12 hours from when you thought it was zipping and stopped. If you know approximately when that was. It could just be resting.View attachment 1769101
I really appreciate your help! This is the best I can get right now without opening it up.
If it doesnt do anything after that and you have no other in progress zipping then take out the chicks and have a good look at that egg.