title: Upload Photo to Instagram with InstaSharper in Asp.net Core
body: <p>First I login by InstaSharper. I try to upload photo with caption by this code.</p>
  
  <pre><code>    var mediaImage = new InstaImage
      {
          Height = 1080,
          Width = 1080,
          URI = new Uri(
              Path.GetFullPath("image.jpg"), UriKind.Absolute).LocalPath
      };
      var r = await api.UploadPhotoAsync(mediaImage, "caption");
  </code></pre>
  
  <p>the image successfully upload without caption. why? </p>
  
  <p>The r.Info result is "OK: No errors detected.";</p>