Fail to download YouTube video iLsBC1yjH40

[hanxue]

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.07.16
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

youtube-dl.exe https://www.youtube.com/watch?v=iLsBC1yjH40 -v
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://www.youtube.com/watch?v=iLsBC1yjH40', '-v']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2019.07.16
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.17134
[debug] exe versions: ffmpeg 3.4
[debug] Proxy map: {}
[youtube] iLsBC1yjH40: Downloading webpage
[youtube] iLsBC1yjH40: Downloading video info webpage
[youtube] iLsBC1yjH40: Downloading MPD manifest
[debug] Default format spec: bestvideo+bestaudio/best
WARNING: Requested formats are incompatible for merge and will be merged into mkv.
[debug] Invoking downloader on 'https://manifest.googlevideo.com/api/manifest/dash/expire/1563447298/ei/ofsvXdfxMMOc8QPD6L-oAQ/ip/149.199.100.131/id/88bb010b5ca31f8d/source/youtube/requiressl/yes/playback_host/r5---sn-npoe7n7y.googlevideo.com/mm/31%2C26/mn/sn-npoe7n7y%2Csn-i3beln7z/ms/au%2Conr/mv/m/mvi/4/pl/25/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/initcwndbps/3223750/mt/1563425583/fvip/5/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Citag/sig/ALgxI2wwRAIgNx_JyF2VxnW2vV8IsO14_3Kw4XnzbsDFKAJvBFaf98UCICKRNGUcEFLRL4VD61MOHH60WA6wx3RtBCRxDb3vVg67/lsparams/playback_host%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps/lsig/AHylml4wRQIgfN7CAG3lIGA9ABDOpQh6VPzUFWa0huInZV_9mtvogiMCIQCapR9a9g2WhWqj6UI0F0SUdnszey3zr-COKmxXJKzeSg%3D%3D'
[dashsegments] Total fragments: 278
[download] Destination: FAST '19 - DistCache - Provable Load Balancing for Large-Scale Storage Systems with Distributed...-iLsBC1yjH40.f248.webm
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 1 of 10)...
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 2 of 10)...
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 3 of 10)...
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 4 of 10)...
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 5 of 10)...
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 6 of 10)...
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 7 of 10)...
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 8 of 10)...
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 9 of 10)...
[download] Got server HTTP error: HTTP Error 404: Not Found. Retrying fragment 1 (attempt 10 of 10)...
ERROR: giving up after 10 fragment retries
  File "__main__.py", line 19, in <module>
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\__init__.py", line 474, in main
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\__init__.py", line 464, in _real_main
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\YoutubeDL.py", line 2008, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\YoutubeDL.py", line 807, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\YoutubeDL.py", line 861, in process_ie_result
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\YoutubeDL.py", line 1642, in process_video_result
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\YoutubeDL.py", line 1909, in process_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\YoutubeDL.py", line 1854, in dl
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\downloader\common.py", line 366, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\downloader\dash.py", line 75, in real_download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\downloader\common.py", line 165, in report_error
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\YoutubeDL.py", line 624, in report_error
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpaxmfe_l6\build\youtube_dl\YoutubeDL.py", line 586, in trouble

Description

The video https://www.youtube.com/watch?v=iLsBC1yjH40 is publicly watchable. It seems the video format 248 is broken. I can download with this command

 youtube-dl.exe https://www.youtube.com/watch?v=iLsBC1yjH40 -f 137+140
[youtube] iLsBC1yjH40: Downloading webpage
[youtube] iLsBC1yjH40: Downloading video info webpage
[youtube] iLsBC1yjH40: Downloading MPD manifest
[dashsegments] Total fragments: 278
[download] Destination: FAST '19 - DistCache - Provable Load Balancing for Large-Scale Storage Systems with Distributed...-iLsBC1yjH40.f137.mp4
[download]  56.8% of ~226.38MiB at  1.28MiB/s ETA 03:01

How can we get youtube-dl to recover if the chosen video stream is not available? Perhaps switch to the next best stream?