This is most commonly seen with high humidity during the first 17 days when the air cell doesn't grow enough. He had pipped center shell so if the humidity was higher and the air cell wasn't big enough and didn't draw down there far enough then it would certainly explain the circumstances. I'm sorry to hear he didn't make it. Don't give up. Whenever you have a situation like this go with your gut on wether to help or not. Sometimes we will make mistakes and pick the wrong thing to do, and anyone that says they've never made a mistake on a judgement call is full of you know what. Even if it's just making the pip hole a bit bigger until you can get an answer from someone whos on. Don't let anyone make you feel guilty about the decision you make, because at some point we all have to make a judgement call.