I just took out an egg that on day 5 looked like it had a broken yolk. I assumed it wouldn't be viable. The yolk was indeed completely broken, but there was some sign of development. (Less, I think, than the other positively developing eggs but I'm not 100% sure because I didn't see them out of the shell.) In the future, should I let a broken yolk be? When I candled it, I couldn't see any development because of the giant yolk blob. It's too late for this egg, but if I come across it again should I remove the egg or let it keep cooking? thanks!