UObject property replication problems

Base uobject class that PreseasonSimulator derives from

void UNetworkObject::GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const
{
	Super::GetLifetimeReplicatedProps(OutLifetimeProps);
}

bool UNetworkObject::IsSupportedForNetworking() const
{
	return true;
}

bool UNetworkObject::CallRemoteFunction(UFunction* Function, void* Parameters, struct FOutParmRec* OutParams, FFrame* Stack)
{
	check(!HasAnyFlags(RF_ClassDefaultObject));
	AActor* Owner = GetOwningActor();
	UNetDriver* NetDriver = Owner->GetNetDriver();
	if (NetDriver)
	{
		NetDriver->ProcessRemoteFunction(Owner, Function, Parameters, OutParams, Stack, this);
		return true;
	}
	return false;
}

int32 UNetworkObject::GetFunctionCallspace(UFunction* Function, FFrame* Stack)
{
	check(GetOuter() != nullptr);
	return GetOuter()->GetFunctionCallspace(Function, Stack);
}


// Derives from UNetworkObject

void UPreseasonSimulator::GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const
{
	Super::GetLifetimeReplicatedProps(OutLifetimeProps);

	DOREPLIFETIME(UPreseasonSimulator, WeekNumber);
}

void UPreseasonSimulator::Server_SimWeek_Implementation()
{
	if (!LegacyManager->HasAuthority())
	{
		return;
	}

	LogNetMode(); // text replacement macro that prints the net mode (prints Listen Server here)

	WeekNumber += 1; // default is 0
	OnRep_WeekNumber(); // Called so it runs on listen server, but I can't get the OnRep to trigger on the client

	NetMulticast_AdvanceWeek(); // currently implemented to just test printing WeekNumber on server and client
}

void UPreseasonSimulator::OnRep_WeekNumber()
{
	LogNetMode(); // text replacement macro that prints the net mode

	UE_LOG(LogTemp, Warning, TEXT("on rep week number"));
}

void UPreseasonSimulator::Client_AdvanceWeek_Implementation()
{
	LogNetMode(); // text replacement macro that prints the net mode

    Prints 1 on server, 0 on client
	UE_LOG(LogTemp, Warning, TEXT("client advance week. Weeek number: %i"), WeekNumber);
}

in PreseasonSimulator .h file
UPROPERTY(ReplicatedUsing="OnRep_WeekNumber",SaveGame)
int32 WeekNumber = 0;

UFUNCTION()
void OnRep_WeekNumber();

// AActor class that spawns the PreseasonSimulator
ALegacyManager::ALegacyManager()
{
	bReplicates = true;
	bAlwaysRelevant = true;
}

bool ALegacyManager::ReplicateSubobjects(UActorChannel* Channel, FOutBunch* Bunch, FReplicationFlags* RepFlags)
{
	bool WroteSomething = Super::ReplicateSubobjects(Channel, Bunch, RepFlags);

	WroteSomething |= Channel->ReplicateSubobject(PreseasonSimulator, *Bunch, *RepFlags);

	return WroteSomething;
}

void ALegacyManager::GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const
{
	Super::GetLifetimeReplicatedProps(OutLifetimeProps);

	DOREPLIFETIME(ALegacyManager, PreseasonSimulator);
}

// Where preseason Simulator is spawned
void ALegacyManager::Server_PostInitialize_Implementation()
{
	if (!HasAuthority())
	{
		return;
	}

	PreseasonSimulator = NewObject<UPreseasonSimulator>(this, UPreseasonSimulator::StaticClass());
	PreseasonSimulator->Initialize(this);

}

void ALegacyManager::OnRep_PreseasonSimulator()
{
	UE_LOG(LogTemp, Warning,TEXT("Preseason Simulator on rep"));
}

.h file of ALegacyManager
UPROPERTY(BlueprintReadOnly, SaveGame, ReplicatedUsing="OnRep_PreseasonSimulator")
UPreseasonSimulator* PreseasonSimulator;

UFUNCTION()
void OnRep_PreseasonSimulator();