SetActorTickEnabled is called but Tick doesn't work

Sorry, I can’t speak English well…

I want to enable / disable Tick Event dynamically.

Here are my code and blueprint node

First Code ( GameMode ) - when actor is clicked, call blueprint(UMG) function for set actor reference. It was checked by log ( print actor’s name)

void ATrackGameMode::ChangeMenuWidget(TSubclassOf<UUserWidget> NewWidgetClass,ASplineActor_Modify* actor) {
	if (CurrentWidget != nullptr) {
		CurrentWidget->RemoveFromViewport();
		CurrentWidget = nullptr;
	}
	if (NewWidgetClass != nullptr) {
		CurrentWidget = CreateWidget<UUserWidget>(GetWorld(), NewWidgetClass);
		if (CurrentWidget != nullptr) {
			CurrentWidget->AddToViewport();
			FOutputDeviceNull ar;
			if (actor != NULL) {
				UE_LOG(LogTemp,Warning, TEXT("%s"), *actor->GetName());
				const FString command = FString::Printf(TEXT("SetActor /Game/StarterContent/Maps/Minimal_Default.Minimal_Default:PersistentLevel.%s"), *actor->GetName());
				CurrentWidget->CallFunctionByNameWithArguments(*command, ar, NULL, true);
			}
		}
	}
}

Second, when UMG’s button is clicked, call actor’s function named Simulate / SimulateOff calling SetActorTickEnabled in cpp. It was checked by log ( print IsActorTickEnabled())

Constructor

ASplineActor_Modify::ASplineActor_Modify()
{
	PrimaryActorTick.bCanEverTick = true;
	PrimaryActorTick.bStartWithTickEnabled = false;
	bIsSimulate = false;
}

Simulate / SimulateOff / SetTickEnabled

void ASplineActor_Modify::Simulate(APawn* pawn) {
	bIsSimulate = true; 
	MySetTickEnabled(true);
}
void ASplineActor_Modify::SimulateOff() {
	bIsSimulate = false;
	MySetTickEnabled(false);
}
void ASplineActor_Modify::MySetTickEnabled(bool b) {
	SetActorTickEnabled(b);
	if (IsActorTickEnabled()) {
		UE_LOG(LogTemp, Warning, TEXT("Tick Enabled"));
	}
	else {
		UE_LOG(LogTemp, Warning, TEXT("Tick Disabled"));
	}
}

Next, Tick Code. - Trace the splineComponent’s road. If Tick had been called, printed Log. But, actually didn’t print log.

void ASplineActor_Modify::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
	if (bIsSimulate) {
		UE_LOG(LogTemp, Warning, TEXT("true"));
	}
	else {
		UE_LOG(LogTemp, Warning, TEXT("false"));
	}

	//UE_LOG(LogTemp, Warning, TEXT("Tick"));
	if (bIsSimulate) {
		UE_LOG(LogTemp, Warning, TEXT("IsSimulate"));
		if (bIsSimulateStart) {
			StartDeltaTime = DeltaTime;
			bIsSimulateStart = false;
		}
		CurrDistance += FMath::FInterpTo(0.0f, SplineComponentExample->GetSplineLength(), DeltaTime-StartDeltaTime, Speed);
		/*GetLocationDistanceAlongSpline*/
		FVector vector = SplineComponentExample->GetLocationAtDistanceAlongSpline(CurrDistance, ESplineCoordinateSpace::Type::World);
		FRotator rotator = SplineComponentExample->GetRotationAtDistanceAlongSpline(CurrDistance, ESplineCoordinateSpace::Type::World);
		UGameplayStatics::GetPlayerPawn(GetWorld(), 0)->SetActorLocationAndRotation(vector, rotator);

		if (SegmentLocations[CurrSplineNdx + 1] - CurrDistance < DistanceTillNextShift) {
			int input = CurrSplineNdx + 1;
			int length = SegmentLocations.Num();

			if (input >= length - 1) {
				CurrSplineNdx = 0;
				CurrDistance = 0.0f;
			}
			else {
				CurrSplineNdx += 1;
			}
		}
	}
}

Last, my log - TickEnabled is set well

128971-log.png

So, I think it is working well. but, Tick doesn’t work…

Please advise me to know how to implement.
Thank you for reading long answer.