Hey girl. How's Mike and the kids? I'm not going to bash you because that's the temp I keep my LG and Hovabator on. No more, no less. My guess is either it just wasn't strong enough to break through and died (survival of the fittest) OR opening up the bator to move the other chicks could have messed with the humidity (which I have done a couple times and those last 2 or 3 never hatch even though you know they were moving and developed after candling).
Sounds like it took no time at all for CHICKEN MATH to get to ya'll. You guys wouldn't happen to have a LF EE or Ameraucana that is laying would you? I need at least 1 no more than 2.