Offline map area created using REST API will not package

[Gravixx]

Hi,

I've been having an issue where when I create an offline area using the REST API, it will not finish packaging, but when I do it manually through the settings of the web map, packaging takes seconds. Here is the api post request:

URI uri = new URI("https://packaging.arcgis.com/arcgis/rest/services/OfflinePackaging/GPServer/CreateMapArea/submitJob");
            url = uri.toURL();
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("POST");
            connection.setRequestProperty("content-type", "application/x-www-form-urlencoded");
            connection.setRequestProperty("Host", "www.arcgis.com");
            connection.setDoOutput(true);
            String requestBody =    "f=json" +
                                    "&mapItemId=a29f7bc8938d4a0ab93fe03bc9e194c5" +
                                    "&areaType=ENVELOPE" +
                                    "&area=" +
                                     "{\"" + 
                                        "spatialReference\":{\"latestWkid\":3857,\"wkid\":102100}," +
                                        "\"xmin\" : " + xmin + "," + // Top left point x coordinate
                                        "\"ymin\" : " + ymin + "," + // Bottom right point y coordinate
                                        "\"xmax\" : " + xmax + "," + // Bottom right point x coordinate
                                        "\"ymax\" : " + ymax + // Top left point y coordinate
                                    "}" +
                                    "&token=" + token;

 Even when the area is as little as a kilometer squared, it still does not package. Why could this be?

Thanks for reading!

[AnthonyRyanEQL]

Are there any differences when you look at the network traffic from your browser using the dev tool for manual creation as compared to your code above?

[Gravixx]

Sorry, I've realized that I posted the wrong rest api code yesterday, and i've changed it now. I also looked at the network traffic using the dev tool and I saw no difference in traffic.