I'm playing on a person server, and after I had a child with my spouse all was good. But once they grew a little I came home to find my child Invisible save their name, which had been changed to "Steve". I'm unsure how to go about fixing this

https://i.imgur.com/MQT0q1W.png

Minecraft Version: 1.12.2
Forge Version: 1.12.2-14.23.3.2655