Problems generating a View in PDF using Rotating

I'm trying to learn how to make a View converted into PDF format so it can be printed or downloaded by a user.

I read some posts and decided to follow the indication of a library called Revolving that seemed very simple to use.

It actually generated a PDF, but the generated PDF came with my Application Login page, rather than the View that was passed to Action.

I think it has something to do with access rights. I tried to put a [AllowAnonymous] on the Action but that did not change the result.

The controller code is simple and has been done following the directions of the Rotary page:

[AllowAnonymous]
    public ActionResult CriarRelatorioEmPDF(FiltroDeTarefaHorasViewModel model)
    {
        model = CarregarModelo(model);

        return new ActionAsPdf("RelatorioEmPDF", model ) { FileName = "RelatorioDeHoras.pdf" };            
    }

    public ActionResult RelatorioEmPDF(FiltroDeTarefaHorasViewModel model)
    {
        return View(model);
    }

Any idea of what might be happening and how to solve it?

Thank you in advance.