Thanks. I went back and looked, and I think I see what happened. I misunderstood what the "In this image" meant. I thought it meant the list of people that appeared in the picture. It defaulted to Rev John, but I deleted that since he isn't actually in the picture.
Apparently it instead means the profiles the picture is to be associated with. I'll try to remember this for the future, but changing "In this image" to something like "Associated with this image" would be a good idea.