That sucks... sorry they didn't make it.
Mine are now on day 53, so I'm hoping for a happy ending very soon - in your experiences (those with successful boob hatchings), do the boob eggs tend to pip early? I'm wondering because it's SUCH a small egg, and when I candled yesterday it looks like he/she is running out of space! Should I cut in the next day or two, in case it's having trouble getting out?