Child actor components cannot be individually selected in viewport

If a child actor component is placed in a blueprint, that child actor component cannot be individually selected in viewport or scene outliner.

1. Open editor (any project)
2. Create new blueprint
3. Add a child actor component (any)
4. Compile, save, close blueprint
5. Place a copy of the blueprint into level
6. Deselect object, then reselect just the child actor component