Familiar Binding to a child help

@telemwill, that's the cheat code that I tried. It didn't work. Maybe it's because he's already a spell caster. He does have a spell book symbol. I still can't get him to bind to his new cat. What am I missing?

@ZzMANzZ, thank you. Jack Jack is my favorite Disney character. His expression describes how I react to a lot of things I've discovered and seen them do in these games over the many years that I've played.