Trains to New Carrollton return `null` `DestinationCode` from GetPredictions JSON endpoint in WMATA API

Request

GET https://api.wmata.com/StationPrediction.svc/json/GetPrediction/K06 HTTP/1.1
Host: api.wmata.com
api_key: API_KEY_HERE

Response

Pragma: no-cache
Arr-Disable-Session-Affinity: True
Cache-Control: no-store, must-revalidate, no-cache
Date: Wed, 12 Oct 2022 22:18:37 GMT
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Content-Length: 989
Content-Type: application/json; charset=utf-8
Expires: Wed, 12 Oct 2022 22:18:37 GMT

{
  "Trains": [{
    "Car": "6",
    "Destination": "Vienna",
    "DestinationCode": "K08",
    "DestinationName": "Vienna/Fairfax-GMU",
    "Group": "2",
    "Line": "OR",
    "LocationCode": "K06",
    "LocationName": "West Falls Church-VT/UVA",
    "Min": "1"
  }, {
    "Car": "6",
    "Destination": "Vienna",
    "DestinationCode": "K08",
    "DestinationName": "Vienna/Fairfax-GMU",
    "Group": "2",
    "Line": "OR",
    "LocationCode": "K06",
    "LocationName": "West Falls Church-VT/UVA",
    "Min": "17"
  }, {
    "Car": "6",
    "Destination": "N Carrollton",
    "DestinationCode": null,
    "DestinationName": "N Carrollton",
    "Group": "1",
    "Line": "OR",
    "LocationCode": "K06",
    "LocationName": "West Falls Church-VT/UVA",
    "Min": "21"
  }, {
    "Car": "6",
    "Destination": "Vienna",
    "DestinationCode": "K08",
    "DestinationName": "Vienna/Fairfax-GMU",
    "Group": "2",
    "Line": "OR",
    "LocationCode": "K06",
    "LocationName": "West Falls Church-VT/UVA",
    "Min": "30"
  }, {
    "Car": "-",
    "Destination": "N Carrollton",
    "DestinationCode": null,
    "DestinationName": "N Carrollton",
    "Group": "1",
    "Line": "OR",
    "LocationCode": "K06",
    "LocationName": "West Falls Church-VT/UVA",
    "Min": "36"
  }]
}