UE4: Actor disappears after play is hit - c++

Question

I am using Unreal Engine version 4.25. I have created an actor and placed it on a blank template. The actor is visible in the editor but becomes invisible once the play button is hit. I am trying to move the object in circles with my code.
Here's the code:
MyActor.cpp
#include "MyActor.h"
// Sets default values
AMyActor::AMyActor()
{
// Set this actor to call Tick() every frame. You can turn this off to improve performance if you don't need it.
PrimaryActorTick.bCanEverTick = true;
Dimensions = FVector(10, 0, 0);
AxisVector = FVector(1, 0, 0);
Location = FVector(1, 0, 0);
Multiplier = 50.f;
}
// Called when the game starts or when spawned
void AMyActor::BeginPlay()
{
Super::BeginPlay();
}
// Called every frame
void AMyActor::Tick(float DeltaTime)
{
Super::Tick(DeltaTime);
// Updates the angle of the object
AngleAxis += DeltaTime * Multiplier;
if (AngleAxis >= 360.0f)
{
AngleAxis = 0;
}
//Rotates around axis
FVector RotateValue = Dimensions.RotateAngleAxis(AngleAxis, AxisVector);
Location.X += RotateValue.X;
Location.Y += RotateValue.Y;
Location.Z += RotateValue.Z;
SetActorLocation(Location, false, 0, ETeleportType::None);
}
MyActor.h
#pragma once
#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "MyActor.generated.h"
UCLASS()
class ROBOTEURS_API AMyActor : public AActor
{
GENERATED_BODY()
public:
// Sets default values for this actor's properties
AMyActor();
protected:
// Called when the game starts or when spawned
virtual void BeginPlay() override;
public:
// Called every frame
virtual void Tick(float DeltaTime) override;
// declare our float variables
UPROPERTY(EditAnywhere, Category = Movement)
float AngleAxis;
UPROPERTY(EditAnywhere, Category = Movement)
FVector Dimensions;
UPROPERTY(EditAnywhere, Category = Movement)
FVector AxisVector;
UPROPERTY(EditAnywhere, Category = Movement)
FVector Location;
UPROPERTY(EditAnywhere, Category = Movement)
float Multiplier;
};
What could have gone wrong?

Answer 1

This fixed it, I did not create a mesh:
https://www.youtube.com/watch?v=30XEdBoPw6c
I added the following:
.cpp
AMyActor::AMyActor()
{
...
Root = CreateDefaultSubobject<USceneComponent>(TEXT("Root"));
RootComponent = Root;
Mesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Mesh"));
Mesh->AttachTo(Root);
...
}
.h
public:
...
UPROPERTY()
USceneComponent* Root;
UPROPERTY(EditAnywhere)
UStaticMeshComponent* Mesh;
...