THERE IS NO BUG.
You need to actually "search" the daughter to retrieve her. You went into her room. I promise you. You found her. BUT YOU DIDN'T PICK HER UP.
The "bug" is in the user. Sorries.
Here's how to fix the 100% "bug:"
Make it so that the daughter comes with you automatically when you enter her room. Dumb dumbs are finding her but not knowing it.