LoadingDialog animation freezes when loading a new page

I'm trying to navigate to a new tabbedpage and while the page is initialising, I want to show a loading dialog. However when I implement the LoadingDailogAsync, the UI seems to hang and the animation stops running. The page loads after a couple seconds, but the hanged animation makes the program look slow.

Here is my code;
```
public InfoViewModel()
{
VersionNumber = "v 1.0";

StartCommand = new Command(async () => await Start());
}

async Task Start()
{
using (await MaterialDialog.Instance.LoadingDialogAsync(message: "Updating config file..."))
{
MainPage main = new MainPage();
await App.Nav.PushAsync(main, true);
}
}
```

Any ideas why the thread is hanging?