Problem attaching scene components in constructor

Development Programming & Scripting C++
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1

I would like to extend the first person template character to achieve the following hierarchy through a C++ blueprint class:
-Character
–Capsule
—Camera
----GunPivot
-----ProjectileSpawnPoint

To achieve this, I’ve added the following lines in the class header:

UPROPERTY(VisibleDefaultsOnly)
class USceneComponent* GunPivot;
UPROPERTY(VisibleDefaultsOnly)
class USceneComponent* ProjectileSpawnPoint;

And this in the constructor of the class:

GunPivot = CreateDefaultSubobject(TEXT(“GunPivot”));
GunPivot->SetupAttachment(FirstPersonCameraComponent);
ProjectileSpawnPoint = CreateDefaultSubobject(TEXT(“ProjectileSpawnPoint”));
ProjectileSpawnPoint->SetupAttachment(GunPivot);

My expectation was that the ProjectileSpawnPoint component would become a child of GunPivot component, but for some reason, it becomes the child of the Character. Can anyone explain the cause?