yt-dlp can't download the last fragment of mpd

Checklist

• I’m reporting a broken site support issue
• I’ve verified that I’m running yt-dlp version 2021.06.09
• 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

C:\Users\Wiesław\Desktop\down_vod\youtube-dlp>yt-dlp -v --allow-unplayable-formats -f wv -N 16 https://ads-cdn-dash-1.blim.com/v1/dash/942b5dcb4f33f2d7bcfe75473f6d9bed3d3d2ff0/avod_prod_ts/201712054084/dash/671210_46e6ebdf0aabd6dcfcaf6bcf7dc4fa14/mpds/671210.mpd?cb=151372080  & ads.customerId=13173383  & ads.assetId=38864  & aws.sessionId=3b37ca0b-f4fb-432d-8fb2-d6ead99a834b
[debug] Command-line config: ['-v', '--allow-unplayable-formats', '-f', 'wv', '-N', '16', 'https://ads-cdn-dash-1.blim.com/v1/dash/942b5dcb4f33f2d7bcfe75473f6d9bed3d3d2ff0/avod_prod_ts/201712054084/dash/671210_46e6ebdf0aabd6dcfcaf6bcf7dc4fa14/mpds/671210.mpd?cb=151372080']
[debug] Encodings: locale cp1250, fs utf-8, out utf-8, pref cp1250
[debug] yt-dlp version 2021.06.08 (exe)
[debug] Python version 3.8.10 (CPython 64bit) - Windows-10-10.0.19041-SP0
[debug] exe versions: ffmpeg git-2019-11-22-27c6c92, ffprobe N-101739-gcad3a5d715
[debug] Proxy map: {}
[debug] [generic] Extracting URL: https://ads-cdn-dash-1.blim.com/v1/dash/942b5dcb4f33f2d7bcfe75473f6d9bed3d3d2ff0/avod_prod_ts/201712054084/dash/671210_46e6ebdf0aabd6dcfcaf6bcf7dc4fa14/mpds/671210.mpd?cb=151372080
[generic] 671210: Requesting header
WARNING: [generic] Could not send HEAD request to https://ads-cdn-dash-1.blim.com/v1/dash/942b5dcb4f33f2d7bcfe75473f6d9bed3d3d2ff0/avod_prod_ts/201712054084/dash/671210_46e6ebdf0aabd6dcfcaf6bcf7dc4fa14/mpds/671210.mpd?cb=151372080: HTTP Error 404: Not Found
[generic] 671210: Downloading webpage
WARNING: [generic] Falling back on generic information extractor.
[generic] 671210: Extracting information
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[info] 671210: Downloading 1 format(s): 180_240640
[debug] Invoking downloader on "https://ads-cdn-dash-1.blim.com/v1/dash/942b5dcb4f33f2d7bcfe75473f6d9bed3d3d2ff0/avod_prod_ts/201712054084/dash/671210_46e6ebdf0aabd6dcfcaf6bcf7dc4fa14/mpds/671210.mpd?cb=151372080"
[dashsegments] Total fragments: 660
[download] Destination: 671210 [671210].mp4
WARNING: The download speed shown is only of one thread. This is a known issue
[download]  99.8% of ~78.92MiB at  4.89MiB/s ETA 00:00     [download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 1 of 10) ...
[download] 100.0% of ~78.89MiB at  4.89MiB/s ETA 00:00     ERROR: unable to download video data: [Errno 2] No such file or directory: '671210 [671210].mp4.part-Frag660'
Traceback (most recent call last):
  File "yt_dlp\YoutubeDL.py", line 2640, in process_info
  File "yt_dlp\YoutubeDL.py", line 2303, in dl
  File "yt_dlp\downloader\common.py", line 384, in download
  File "yt_dlp\downloader\dash.py", line 176, in real_download
  File "yt_dlp\utils.py", line 2062, in sanitize_open
FileNotFoundError: [Errno 2] No such file or directory: '671210 [671210].mp4.part-Frag660'

Description

Hi. I’m downloading mpd where (I think) the last fragment is invalid or sth. So I end up at 99.8% with such files. I use -N16 because it’s much faster. yt-dlp cannot skip the unavailable fragment.

When I download without -N 16, yt-dlp SOMETIMES skips the last fragment but not always.

[download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 2 of 10) ...
[download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 3 of 10) ...
[download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 4 of 10) ...
[download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 5 of 10) ...
[download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 6 of 10) ...
[download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 7 of 10) ...
[download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 8 of 10) ...
[download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 9 of 10) ...
[download] Got server HTTP error: HTTP Error 403: Forbidden. Retrying fragment 660 (attempt 10 of 10) ...
[download] Skipping fragment 660 ...
[download] 100% of 78.80MiB in 01:19

[pukkandan]

#364 when complete will fix this

[m0ck69]

thx