UPROPERTY component pointer goes null outside constructor

The components show in the editor though, pseudocode :

ProceduralLandscape.h

UCLASS()
class ANATOLE_API AProceduralLandscape : public AActor
{
	GENERATED_UCLASS_BODY() 
        // error persists when using GENERATED_BODY() without FObjectInitializer

	UPROPERTY(VisibleAnywhere)
	UGeneratedMeshComponent* meshComp; 
 //Tried Without VisibleAnywhere & with public access
 //Changing this component to a common component like UCapsuleComponent doesn't help either
 //Creating a UPROPERTY for the USphereComponent also doesn't help

	
}

ProceduralLandscape.cpp

AProceduralLandscape::AProceduralLandscape(const FObjectInitializer & objectInitialiser) : Super(objectInitialiser)
{
	
	RootComponent = objectInitialiser.CreateDefaultSubobject<UCapsuleComponent>(this, FName("RootCapsule"));
	meshComp = objectInitialiser.CreateDefaultSubobject<UGeneratedMeshComponent>(this, FName("GeneratedMesh1"));
	ensure(RootComponent != nullptr);  // never triggered
	meshComp->AttachTo(RootComponent);
	ensure(meshComp != nullptr); // never triggered
}

void  AProceduralLandscape::someFunc()
{
    ensure(meshComp != nullptr); // always triggers breakpoint.
}

False alarm !

The Class containing this class went null at some point, hence the error.
Got a solution thanks to the guidance of the lovely people on irc