Xamarin Restart HttpClientFactory

Question

In my Xamarin app I get an exception on app startup on both Android and iOS.

"Cannot access a disposed object. Object name: 'MobileAuthenticatedStream'"

This seems to be happening after a background fetch has been run.

I am initializing my httpclientfactory like so

static void Init()
{
    var host = new HostBuilder()
    .ConfigureHostConfiguration(c =>
    {
        c.AddCommandLine(new string[] { $"ContentRoot={FileSystem.AppDataDirectory}" });
    })
    .ConfigureServices((c, x) =>
    {
        ConfigureServices(c, x);
    })
    .Build();
    ServiceProvider = host.Services;
}

static void ConfigureServices(HostBuilderContext ctx, IServiceCollection services)
{
    services.AddSingleton<Helpers.ClientService>();
    services.AddHttpClient("webClient", client =>
    {
        client.DefaultRequestHeaders.Authorization = GenerateAuthHeader();
    })
    .AddPolicyHandler(GetRetryPolicy());
}

Then getting the client for use like

public class ClientService
{
    IHttpClientFactory _httpClientFactory;
    public ClientService(IHttpClientFactory factory)
    {
        _httpClientFactory = factory;
    }

    public HttpClient GetClient()
    {
        return _httpClientFactory.CreateClient(App.ClientName);
    }
}

Helpers.ClientService service = App.ServiceProvider.GetService<Helpers.ClientService>();
HttpClient client = service.GetClient();
HttpResponseMessage response = await client.GetAsync(url);

On app start and resume I am re-running Init method.

Is this re-initializing the factory correctly, if not how should I implement this functionality