How to create an array of sub objects?

Development Programming & Scripting C++
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5

I realize this is a really old post, but hoping for some help on this same scenario in UE5. I’m trying to instantiate an array of USplineComponents within BeginPlay(). In my Actor’s .h I declare

public:

    UPROPERTY(Instanced)
    TArray<USplineComponent*> Splines;

In the Actor’s .cpp

void AMyActor::BeginPlay()
{
    ...
    USplineComponent* spline = CreateDefaultSubobject<USplineComponent>(TEXT("SomeSpline"), false); // tried true here as well
}

When I PIE, UE5 crashes in CoreUObject.dll. I’ve tried subclassing USplineComponent with

UCLASS(EditInlineNew)
class KUIPER_API UInstancedSplineComponent : public USplineComponent
{
	GENERATED_BODY()
	
};

but it still crashes. I don’t need the spline components exposed in the editor, I just need to generate them dynamically during gameplay.

EDIT:
I was able to fix this by using

USplineComponent* spline = NewObject<USplineComponent>(this, TEXT("SomeSpline"));

instead of CreateDefaultSubobject