Hello sorry to hear about your loss of Deliah I am up in northwest corner on Mich border. I do have some year-old mix hens, Khaki drake over a Rouen hen. I'm sure I could part with one or so for a companion if you're interested.
By looking at your pics it has zipped all the way around but has not torn the membrane fully, not allowing it to pop the cap. The membrane should be fully torn all the way around just like the shell is. You may need to help it pop the cap by slowly pulling top section of egg until it breaks...