[Mixer]: WARNING: Unable to download SMIL file: HTTP Error 400: Bad Request

[SearchAndDestroy]

I am having problems recording Mixer live streams:

youtube-dl -g -v https://mixer.com/monstercat
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-g', '-v', 'https://mixer.com/monstercat']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2018.08.04
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.17134
[debug] exe versions: ffmpeg 4.0.2, ffprobe 4.0.2
[debug] Proxy map: {}
WARNING: Unable to download SMIL file: HTTP Error 400: Bad Request
[debug] Default format spec: bestvideo+bestaudio/best
https://videocdn.mixer.com/hls/160788-94f2bdedb8c05567a8543a680508e03d9f8821f2_source/index.m3u8

If I use the option -q or no option, it works even if I get the above warning.

If I download a VOD, with -g I get the URL and it exits.
It works with -q or no option.

youtube-dl -g -v https://mixer.com/Direwolf20?vod=50561793
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-g', '-v', 'https://mixer.com/Direwolf20?vod=50561793']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2018.08.04
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.17134
[debug] exe versions: ffmpeg 4.0.2, ffprobe 4.0.2
[debug] Proxy map: {}
[debug] Default format spec: bestvideo+bestaudio/best
https://vodcontent-2003.xboxlive.com/channel-9071-public/e21e858a-9e59-4c09-b248-cd4dfaea4147/source.mp4

I am using the latest version 2018.08.04