YouTube error: fragment 1 not found, unable to continue

[ahm750]

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• I'm reporting a broken site
• I've verified that I'm running yt-dlp version 2022.08.19 (update instructions) or later (specify commit)
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Hi, these two YouTube videos are not getting downloaded for the 1080p resolution (-f 137) and throw an error as shown in the verbose below.

https://www.youtube.com/watch?v=H2CMFor1mwY
https://www.youtube.com/watch?v=4NtTni0ApZc

Provide verbose output that clearly demonstrates the problem

• Run your yt-dlp command with -vU flag added (yt-dlp -vU <your command line>)
• Copy the WHOLE output (starting with [debug] Command-line config) and insert it below

Complete Verbose Output

[debug] Command-line config: ['-f', '137', 'https://www.youtube.com/watch?v=4NtTni0ApZc', '-vU']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out UTF-8, error UTF-8, screen UTF-8
[debug] yt-dlp version 2022.08.19 [48c88e0] (zip)
[debug] Python 3.7.5 (CPython 64bit) - Linux-4.15.0-135-generic-x86_64-with-Ubuntu-18.04-bionic (glibc 2.26)
[debug] Checking exe version: ffmpeg -bsfs
[debug] Checking exe version: ffprobe -bsfs
[debug] exe versions: none
[debug] Optional libraries: Cryptodome-3.14.1, brotli-1.0.9, certifi-2021.05.30, mutagen-1.45.1, sqlite3-2.6.0, websockets-10.2
[debug] Proxy map: {}
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Latest version: 2022.08.19, Current version: 2022.08.19
yt-dlp is up to date (2022.08.19)
[debug] [youtube] Extracting URL: https://www.youtube.com/watch?v=4NtTni0ApZc
[youtube] 4NtTni0ApZc: Downloading webpage
[youtube] 4NtTni0ApZc: Downloading android player API JSON
[youtube] 4NtTni0ApZc: Downloading MPD manifest
[youtube] 4NtTni0ApZc: Downloading MPD manifest
[debug] Sort order given by extractor: quality, res, fps, hdr:12, source, vcodec:vp9.2, channels, acodec, lang, proto
[debug] Formats sorted by: hasvid, ie_pref, quality, res, fps, hdr:12(7), source, vcodec:vp9.2(10), channels, acodec, lang, proto, filesize, fs_approx, tbr, vbr, abr, asr, vext, aext, hasaud, id
[info] 4NtTni0ApZc: Downloading 1 format(s): 137
[debug] Invoking dashsegments downloader on "https://manifest.googlevideo.com/api/manifest/dash/expire/1661807257/ei/OdYMY87qN5rBhgaY1p6gAg/ip/165.227.72.96/id/e0db539e2d00a597/source/youtube/requiressl/yes/playback_host/rr3---sn-ab5sznz6.googlevideo.com/mh/ve/mm/31%2C26/mn/sn-ab5sznz6%2Csn-vgqsknsk/ms/au%2Conr/mv/m/mvi/3/pl/20/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/initcwndbps/203750/vprv/1/mt/1661785290/fvip/4/keepalive/yes/fexp/24001373%2C24007246/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/AOq0QJ8wRAIgPy3bfYKDrvh95cr_95ayAm5fm1R_A2nnd_9yAv14KRECICjkXRm6Iv7xZwcFKluQMNgs7Sp_Z8_ciJbYIXjVmzEK/lsparams/playback_host%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps/lsig/AG3C_xAwRQIgW4HxK-qB_6Ga_j_Oi_yZBtLxTIwL5a_mYqYsNfGOUYsCIQDhLf_Z8X-stbOFvRJsESgA16H7MC_ZjyM4s7kEpDgIuA%3D%3D"
[dashsegments] Total fragments: 116
[download] Destination: Oathbreaker – EPIC Fantasy Photoshop Timelapse Speedart [4NtTni0ApZc].mp4
[download] Got error: The read operation timed out. Retrying (1/10)...
[download] Got error: The read operation timed out. Retrying (2/10)...
[download] Got error: The read operation timed out. Retrying (3/10)...
[download] Got error: HTTP Error 503: Service Unavailable. Retrying (4/10)...
[download] Got error: HTTP Error 503: Service Unavailable. Retrying (5/10)...
[download] Got error: HTTP Error 503: Service Unavailable. Retrying (6/10)...
[download] Got error: HTTP Error 503: Service Unavailable. Retrying (7/10)...
[download] Got error: HTTP Error 503: Service Unavailable. Retrying (8/10)...
[download] Got error: HTTP Error 503: Service Unavailable. Retrying (9/10)...
[download] Got error: HTTP Error 503: Service Unavailable. Retrying (10/10)...
[download] Got error: HTTP Error 503: Service Unavailable. Giving up after 10 retries
  File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/local/bin/yt-dlp/__main__.py", line 17, in <module>
    yt_dlp.main()
  File "/usr/local/bin/yt-dlp/yt_dlp/__init__.py", line 953, in main
    _exit(*variadic(_real_main(argv)))
  File "/usr/local/bin/yt-dlp/yt_dlp/__init__.py", line 945, in _real_main
    return ydl.download(all_urls)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 3292, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 3267, in wrapper
    res = func(*args, **kwargs)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1433, in extract_info
    return self.__extract_info(url, self.get_info_extractor(ie_key), download, extra_info, process)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1442, in wrapper
    return func(self, *args, **kwargs)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1539, in __extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1597, in process_ie_result
    ie_result = self.process_video_result(ie_result, download=download)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 2695, in process_video_result
    self.process_info(new_info)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 3170, in process_info
    success, real_download = self.dl(temp_filename, info_dict)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 2894, in dl
    return fd.download(name, new_info, subtitle)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/common.py", line 442, in download
    ret = self.real_download(filename, info_dict)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/dash.py", line 54, in real_download
    return self.download_and_append_fragments_multiple(*args)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/fragment.py", line 373, in download_and_append_fragments_multiple
    return self.download_and_append_fragments(*args[0], pack_func=pack_func, finish_func=finish_func)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/fragment.py", line 517, in download_and_append_fragments
    download_fragment(fragment, ctx)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/fragment.py", line 466, in download_fragment
    if not self._download_fragment(ctx, fragment['url'], info_dict, headers):
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/fragment.py", line 124, in _download_fragment
    success, _ = ctx['dl'].download(fragment_filename, fragment_info_dict)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/common.py", line 442, in download
    ret = self.real_download(filename, info_dict)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/http.py", line 369, in real_download
    for retry in RetryManager(self.params.get('retries'), self.report_retry):
  File "/usr/local/bin/yt-dlp/yt_dlp/utils.py", line 5754, in __iter__
    self.error_callback(self.error, self.attempt, self.retries)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/common.py", line 392, in report_retry
    suffix=f'fragment{"s" if frag_index is None else f" {frag_index}"}' if is_frag else None)
  File "/usr/local/bin/yt-dlp/yt_dlp/utils.py", line 5761, in report_retry
    return error(f'{e}. Giving up after {count - 1} retries') if count > 1 else error(str(e))
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/common.py", line 390, in <lambda>
    error=IDENTITY if not fatal else lambda e: self.report_error(f'\r[download] Got error: {e}'),
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 979, in report_error
    self.trouble(f'{self._format_err("ERROR:", self.Styles.ERROR)} {message}', *args, **kwargs)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 911, in trouble
    tb_data = traceback.format_list(traceback.extract_stack())

ERROR: fragment 1 not found, unable to continue
  File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/local/bin/yt-dlp/__main__.py", line 17, in <module>
    yt_dlp.main()
  File "/usr/local/bin/yt-dlp/yt_dlp/__init__.py", line 953, in main
    _exit(*variadic(_real_main(argv)))
  File "/usr/local/bin/yt-dlp/yt_dlp/__init__.py", line 945, in _real_main
    return ydl.download(all_urls)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 3292, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 3267, in wrapper
    res = func(*args, **kwargs)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1433, in extract_info
    return self.__extract_info(url, self.get_info_extractor(ie_key), download, extra_info, process)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1442, in wrapper
    return func(self, *args, **kwargs)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1539, in __extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1597, in process_ie_result
    ie_result = self.process_video_result(ie_result, download=download)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 2695, in process_video_result
    self.process_info(new_info)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 3170, in process_info
    success, real_download = self.dl(temp_filename, info_dict)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 2894, in dl
    return fd.download(name, new_info, subtitle)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/common.py", line 442, in download
    ret = self.real_download(filename, info_dict)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/dash.py", line 54, in real_download
    return self.download_and_append_fragments_multiple(*args)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/fragment.py", line 373, in download_and_append_fragments_multiple
    return self.download_and_append_fragments(*args[0], pack_func=pack_func, finish_func=finish_func)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/fragment.py", line 519, in download_and_append_fragments
    decrypt_fragment(fragment, self._read_fragment(ctx)), fragment['frag_index'], ctx)
  File "/usr/local/bin/yt-dlp/yt_dlp/downloader/fragment.py", line 482, in append_fragment
    self.report_error(f'fragment {frag_index} not found, unable to continue')
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 979, in report_error
    self.trouble(f'{self._format_err("ERROR:", self.Styles.ERROR)} {message}', *args, **kwargs)
  File "/usr/local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 911, in trouble
    tb_data = traceback.format_list(traceback.extract_stack())

[pukkandan]

The server is giving 503/timing out. Nothing we can do