Yes removing the MiddlewareFilter fixed this issue. I just wanted to say thank you for producing such a great product!

I have worked with the samples from the video and all are working fine. I now want to return a stream now....here's my code based on the way I think it should work. Unfortunately I get an exception. JsReportBinaryException: Error rendering report: rendering has finished with errors:
Here's my code in my Controller( I've taken my example from the video and it's a simple test instead of using File.Create I am returning a stream)

    [MiddlewareFilter(typeof(JsReportPipeline))]
    public async Task<IActionResult> ReportContentReturnAsync()
    {
        var rs = new LocalReporting().UseBinary(JsReportBinary.GetBinary()).AsUtility().Create();

        var report = await rs.RenderAsync(new RenderRequest()
        {
            Template = new Template()
            {
                Recipe = Recipe.PhantomPdf,
                Engine = Engine.None,
                Content = "Hello from pdf"
            }
        });
        var memoryStream = new MemoryStream();
        await report.Content.CopyToAsync(memoryStream);
        memoryStream.Seek(0, SeekOrigin.Begin);
        return new FileStreamResult(memoryStream, "application/pdf") { FileDownloadName = "out.pdf" };
        }