Windows 8.1 share doesn't work when Print Screen is added

Question

I'm trying to implement some logical to share the image of my webView and some extras informations. If I do that without capture screen, it works perfectly:

 

      private async void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs e)
        {
            if (await GetShareContent(e.Request))
            {
                if (String.IsNullOrEmpty(e.Request.Data.Properties.Title))
                {
                    e.Request.FailWithDisplayText("Nenhum título adicionado");
                }
            }
        }
    private async Task<bool> GetShareContent(DataRequest request, StorageFile file)
            {
                bool succeeded = false;
                string text = "Dados do Arquivo:" + Environment.NewLine + webViewModel.Name;
                string dataPackageText = text;
    
                if (!String.IsNullOrEmpty(dataPackageText))
                {
                    DataPackage requestData = request.Data;
                    requestData.Properties.Title = "Target";
                    requestData.Properties.Description = webViewModel.Name;
                    requestData.SetText(dataPackageText);
                    succeeded = true;
                }
                else
                {
                    request.FailWithDisplayText("Não há nada para compartilhar");
                }
                return succeeded;
            }

But, if I try the same thing justing adding the captured image, it doesn't work, doesn't show any Excepetion, just the message: "Não há nada para compartilhar agora" (There's nothing to share right now)

I don't know what is going on. The code that doesn't work:

 

  private async void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs e)
    {
        StorageFile file = await captureScreen();

        if (await GetShareContent(e.Request, file))
        {
            if (String.IsNullOrEmpty(e.Request.Data.Properties.Title))
            {
                e.Request.FailWithDisplayText("Nenhum título adicionado");
            }
        }
    }

     private async Task<StorageFile> captureScreen()
            {
                RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap();
                await renderTargetBitmap.RenderAsync(webView, (int)webView.Width, (int)webView.Height);
    
                Image myImage = new Image();
                myImage.Source = renderTargetBitmap;
    
                var file = await App.rootDir.CreateFileAsync("screenCapture.jpg", CreationCollisionOption.ReplaceExisting);
                var pixels = await renderTargetBitmap.GetPixelsAsync();
    
                using (IRandomAccessStream stream = await file.OpenAsync(FileAccessMode.ReadWrite))
                {
                    var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, stream);
                    byte[] bytes = pixels.ToArray();
                    encoder.SetPixelData(BitmapPixelFormat.Bgra8,
                                         BitmapAlphaMode.Ignore,
                                         (uint)webView.Width, (uint)webView.Height,
                                         96, 96, bytes);
    
                    await encoder.FlushAsync();
                }
    
                return file;
            }

I though it could be happening because the image was not read when the share is called, but I'm using await as it should be. And my jpeg is created perfectly.