Component hierarchy information is lost when modifying an Instance of a Blueprint that Inherits from a C++ Pawn. Specifically, when this instance's hierarchy is modified via the World Outliner Editor details panel.
Result: Scene1 is parented to the Root Component of the Actor, rather than a child of Scene Component.
Expected: Scene1 would successfully child to Scene Component.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-69374 in the post.