repeatedly cannot download specific video

[aureooms]

test with two different videos

stdout and stderr for youtube-dl ui6pJ-Sqg9k --restrict-filenames -v

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['ui6pJ-Sqg9k', '--restrict-filenames', '-v']
[debug] Encodings: locale UTF-8, fs UTF-8, out None, pref UTF-8
[debug] youtube-dl version 2014.08.24.1
[debug] Python version 2.7.6 - Linux-3.13.0-34-generic-x86_64-with-Ubuntu-14.04-trusty
[debug] Proxy map: {}
[youtube] Setting language
[youtube] ui6pJ-Sqg9k: Downloading webpage
[youtube] ui6pJ-Sqg9k: Downloading video info webpage
[youtube] ui6pJ-Sqg9k: Extracting video information
[youtube] RTMP download detected
[debug] Invoking downloader on u'rtmpe://v12.nonxt2.c.youtube.com/videoplayback'
[download] Destination: Moscow_Doesn_t_Believe_in_Tears-ui6pJ-Sqg9k.unknown_video
[debug] rtmpdump command line: rtmpdump --verbose -r rtmpe://v12.nonxt2.c.youtube.com/videoplayback -o Moscow_Doesn_t_Believe_in_Tears-ui6pJ-Sqg9k.unknown_video.part --resume --skip 1
[rtmpdump] RTMPDump v2.4
[rtmpdump] (c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
[rtmpdump] DEBUG: Parsing...
[rtmpdump] DEBUG: Parsed protocol: 2
[rtmpdump] DEBUG: Parsed host    : v12.nonxt2.c.youtube.com
[rtmpdump] DEBUG: Parsed app     : videoplayback
[rtmpdump] DEBUG: Number of skipped key frames for resume: 1
[rtmpdump] ERROR: You must specify a playpath (--playpath) or url (-r "rtmp://host[:port]/playpath") containing a playpath
ERROR: unable to download video
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1061, in download
    self.extract_info(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 531, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 573, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 839, in process_video_result
    self.process_info(new_info)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1036, in process_info
    raise UnavailableVideoError(err)
UnavailableVideoError: [Errno 2] No such file or directory: 'Moscow_Doesn_t_Believe_in_Tears-ui6pJ-Sqg9k.unknown_video.part'

[jaimeMF]

Duplocate of #1797.