[Newgrounds] Failure to download some videos

[mz2212]

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.06.05. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2017.06.05

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Not a clue as to what's going on here, when I go to the failed url in firefox and inspect the video element, I get a completely diffrent video url from what it's trying to download.
Perhaps some sort of parse is failing?

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', '--call-home', 'http://www.newgrounds.com/portal/view/689400']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2017.06.05
[debug] Python version 3.4.4 - Windows-10-10.0.15063
[debug] exe versions: none
[debug] Proxy map: {}
[debug] Public IP address: 2601:681:4a03:9421:3dd1:7ead:df02:4814
[Newgrounds] 689400: Downloading webpage
WARNING: unable to extract uploader; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
[debug] Invoking downloader on 'http://uploads.ungrounded.net/alternate/1071000/1071980_alternate_43124.mov'
ERROR: unable to download video data: HTTP Error 404: Not Found
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp6q2mjw76\build\youtube_dl\YoutubeDL.py", line 1804, in process_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp6q2mjw76\build\youtube_dl\YoutubeDL.py", line 1746, in dl
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp6q2mjw76\build\youtube_dl\downloader\common.py", line 360, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp6q2mjw76\build\youtube_dl\downloader\http.py", line 61, in real_download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp6q2mjw76\build\youtube_dl\YoutubeDL.py", line 2107, in urlopen
  File "C:\Python\Python34\lib\urllib\request.py", line 470, in open
  File "C:\Python\Python34\lib\urllib\request.py", line 580, in http_response
  File "C:\Python\Python34\lib\urllib\request.py", line 508, in error
  File "C:\Python\Python34\lib\urllib\request.py", line 442, in _call_chain
  File "C:\Python\Python34\lib\urllib\request.py", line 588, in http_error_default
urllib.error.HTTPError: HTTP Error 404: Not Found

Example failed url: http://www.newgrounds.com/portal/view/689400
Example successful url: http://www.newgrounds.com/portal/view/591615