Unity 2019 Issue

I have a weird issue. I have a project i'm working on that works on one machine but does not work on another machine. I'm using GitHub so they are always in sync across the machines. Its a weird issue. Its only occurring in my co routine. I make a call to my API and I can see the API return the data but the broken version does not wait for a response it just keeps moving. The working project version of course works fine. Anyone see this issue before? The issue started when I upgraded to 2019.

Code (CSharp):

1. IEnumerator TileDataTableWebRequest(string uri, object obj)
2.     {
3.         try
4.         {
5.             string json = JsonConvert.SerializeObject(obj);
6.             var client = new HttpClient();
7.             var webRequest = WebRequest.Create(uri);
8.  
9.             webRequest.Method = "POST";
10.             webRequest.ContentType = "application/json";
11.  
12.             using (var streamWriter = new StreamWriter(webRequest.GetRequestStream()))
13.             {
14.                 streamWriter.Write(json);
15.             }
16.  
17.             var httpResponse = (HttpWebResponse)webRequest.GetResponse();
18.             using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
19.             {
20.                 var result = streamReader.ReadToEnd();
21.                 _dt = JsonConvert.DeserializeObject<DataTable>(result);
22.             }
23.         }
24.         catch (Exception ex)
25.         {
26.             Debug.Log("Failed To Load Tile Data");
27.         }
28.         yield return _dt;
29.     }

I hit this part just fine:

Code (CSharp):

1. using (var streamWriter = new StreamWriter(webRequest.GetRequestStream()))
2.             {
3.                 streamWriter.Write(json);
4.             }

Then skips past this part:

Code (CSharp):

1. var httpResponse = (HttpWebResponse)webRequest.GetResponse();
2.             using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
3.             {
4.                 var result = streamReader.ReadToEnd();
5.                 _dt = JsonConvert.DeserializeObject<DataTable>(result);
6.             }