Adding Instances for multiple Instanced Static Meshes cause a crash

Development Asset Creation
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5

I would like to thank you for making me doubt my code, it was indeed the problem so this no longer is a bug report. It is related to my code and I could narrow down the problem to this extent:

void AProductGroup::CullXRow(FProductRowX &RowToDestroy)
{
	// Determine if should add or remove products // This one removes
	if (RowToDestroy.Products->GetInstanceCount() > ProductPlacementX)
	{
		for (int i = RowToDestroy.Products->GetInstanceCount() - 1; i >= ProductPlacementX ; i--)
		{
			UE_LOG(LogTemp, Warning, TEXT("Destroyed Product: %d"), i);
			RowToDestroy.Products->RemoveInstance(i);
		}
	}
	// This one adds
	else if (RowToDestroy.Products->GetInstanceCount() < ProductPlacementX)
	{
		FVector meshOrigin;
		FVector meshExtent;
		float sphereRadius;

		UKismetSystemLibrary::GetComponentBounds(ArrowMesh, meshOrigin, meshExtent, sphereRadius);

		for (int i = RowToDestroy.Products->GetInstanceCount(); i < ProductPlacementX; i++)
		{
			int asdf = RowToDestroy.Products->AddInstance(FTransform(FVector(meshExtent.X + (((meshExtent * 2).X + GapBetweenProducts)*i), 0, 0)));
			UE_LOG(LogTemp, Warning, TEXT("Created Product: %d"), asdf);
		}
	}
}

This code adds or removes a new instance depending on the variable ProductPlacementX. If lets say, there should be 4 items and it has 3, it adds a new instance. And this method is called here for every other dimensions I have: To be continued