I am sorry to hear about your experience, but I do appreciate you sharing. If I can take something positive away from your story and others like it, it would be to just wait and let nature happen. I have read too many threads where cutting did not change the contents in the egg, but dramatically changed the outcome of the process, and rarely for the better. It does seem to be a condition of people today, the need to know now. It is probably a result if the internet providing instantaneous answers.
Congratulations on the others. The pied that did hatch is absolutely gorgeous and is everything I could hope to have in a pied one day. I really love medium pieds and the balance of that little guy is nice.