Strange Replication in C++

Development Audio
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1

Hello all,

I have a projectile that a player shoots, then on impact with another player it plays a “hit” sound.

The Pawn class calls a Server RPC HandleFire that spawns the projectile.

void ATechnomancyCharacter::HandleFire_Implementation()
{
	...
	GetWorld()->SpawnActor<ABaseAttack>(SpawnLocation, Direction.Rotation(), SpawnParameters);
	...
}

Then the OnProjectileOverlap function of the projectile calls a Client RPC called PlayClientSound

void ABaseAttack::OnProjectileOverlap(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
	...
	IGameObject* OtherObject = Cast<IGameObject>(OtherActor);
	IGameObject* InstigatorObject = Cast<IGameObject>(Instigator);
	...
	if (OtherObject && InstigatorObject)
	{
		...
		InstigatorObject->PlayClientSound(HitSound);
	}
        ...
}

Here is the Client RPC

void ATechnomancyCharacter::PlayClientSound_Implementation(USoundCue* Sound)
{
	UGameplayStatics::PlaySound2D(GetWorld(), Sound);
}

So in a multiplayer setting (listen server) I get some strange replication issues. When I play as a client things work as intended (meaning when I hit another player I get the “Hit” sound), but when I play as the server I will get the sound but it will SOMETIMES also play the sound on the client which is obviously not wanted.

Is there something I am doing wrong with the RPC calls I am making to cause this?