Hello.
Yes it won’t pop up and it shouldn’t. The system is created to let you add SceneComponents to the children. If you want a component on a ChildActorComponent or any child component, that component you’re trying to attach to your child component must be a SceneComponent. You can’t add ActorComponents to children. You can only attach those to the main actors themselves. That approach doesn’t work for you to create an Actor class and attach some components to it and then use it as a ChildActorComponent.