A series on toggle unable to be downloaded

[waterlogithub]

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• I've verified and I assure that I'm running youtube-dl 2019.04.24

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• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://video.toggle.sg/zh/series/when-duty-calls/ep20/523854']
[debug] Encodings: locale cp936, fs mbcs, out cp936, pref cp936
[debug] youtube-dl version 2019.04.24
[debug] Python version 2.7.16 (CPython) - Windows-7-6.1.7601-SP1
[debug] exe versions: ffmpeg N-93580-g036b4b0f85, ffprobe N-93580-g036b4b0f85
[debug] Proxy map: {}
---

### 
If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

- Playlist: https://video.toggle.sg/en/video/series/when-duty-calls/ep1/520403

Note that **youtube-dl does not support sites dedicated to [copyright infringement](https://github.com/ytdl-org/youtube-dl#can-you-add-support-for-this-anime-video-site-or-site-which-shows-current-movies-for-free)**. In order for site support request to be accepted all provided example URLs should not violate any copyrights.

---

### Description of your *issue*, suggested solution and other information

The when-duty-calls series on toggle.sg unable to be downloaded, the links are alive 
and **others series on toggle are able to be downloaded.**

it showed:

D:\v>youtube-dl https://video.toggle.sg/zh/series/when-duty-calls/ep20/523854
[toggle] 523854: Downloading video page
[toggle] 523854: Downloading video info json
[toggle] 523854: Downloading SS_Web ISM manifest
[toggle] 523854: Downloading SS_TV ISM manifest
[toggle] 523854: Downloading DASH_Mobile MPD manifest
[toggle] 523854: Downloading DASH_Web MPD manifest
[toggle] 523854: Downloading DASH_TV MPD manifest
[toggle] 523854: Downloading HLS_Mobile m3u8 information
[toggle] 523854: Downloading HLS_Web m3u8 information
[toggle] 523854: Downloading HLS_TV m3u8 information
[toggle] 523854: Downloading DASH_Tablet MPD manifest
[toggle] 523854: Downloading HLS_Tablet m3u8 information
[toggle] 523854: Downloading DASH_HBBTV MPD manifest
WARNING: Failed to download DASH_HBBTV MPD manifest: HTTP Error 404: Not Found
[download] Destination: When Duty Calls 卫国先锋 - Episode 20-523854.mp4
ffmpeg version N-93580-g036b4b0f85 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 8.3.1 (GCC) 20190414
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libm
p3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable
-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enabl
e-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --e
nable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 26.100 / 56. 26.100
  libavcodec     58. 51.100 / 58. 51.100
  libavformat    58. 27.102 / 58. 27.102
  libavdevice    58.  7.100 / 58.  7.100
  libavfilter     7. 48.100 /  7. 48.100
  libswscale      5.  4.100 /  5.  4.100
  libswresample   3.  4.100 /  3.  4.100
  libpostproc    55.  4.100 / 55.  4.100
[hls @ 009e9d40] SAMPLE-AES encryption is not supported yet
[hls @ 009e9d40] Failed to open segment 1 of playlist 0
[hls @ 009e9d40] SAMPLE-AES encryption is not supported yet
[hls @ 009e9d40] Failed to open segment 2 of playlist 0
[hls @ 009e9d40] SAMPLE-AES encryption is not supported yet
...
[hls @ 009e9d40] Failed to open segment 275 of playlist 0
[hls @ 009e9d40] Error when loading first segment 'https://k-toggle.akamaized.net/fpshls/p/2082311/sp/208231100/serveFlavor/entryId/0_ffjjrdj9/v/11/pv/1/flavorId/0_2g5o3fgx/name/a.mp4/seg-1-v1-a1.ts'
https://k-toggle.akamaized.net/fpshls/p/2082311/sp/208231100/serveFlavor/entryId/0_ffjjrdj9/v/11/pv/1/flavorId/0_2g5o3fgx/name/a.mp4/index.m3u8: Invalid data found when processing input

ERROR: ffmpeg exited with code 1

How can I download the series?