WARNING: unable to extract og:image;

[AjayKumarBa]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.07.30
• 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 -v -f dash_hd_src https://www.facebook.com/719853864726295/posts/2172061039505563/?sfnsn=mo
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '-f', 'dash_hd_src', 'https://www.facebook.com/719853864726295/posts/2172061039505563/?sfnsn=mo']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.07.30
[debug] Python version 3.6.8 (CPython) - Linux-4.15.0-55-generic-i686-with-Ubuntu-18.04-bionic
[debug] exe versions: none
[debug] Proxy map: {}
[facebook] 2172061039505563: Downloading webpage
WARNING: unable to extract og:image; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
[debug] Invoking downloader on 'https://scontent.fpnq7-1.fna.fbcdn.net/v/t39.24130-6/10000000_414239885829303_4537815856357327132_n.mp4?_nc_cat=101&efg=eyJ2ZW5jb2RlX3RhZyI6Im9lcF9oZCJ9&_nc_oc=AQnxkwh9u_uDRsPmnzonGbpr9TwSUSjWportdM2p6tMXsl1NkXcOpk_T96IT-2jb2y0dBhvvo6bv0G3SrJfiUUmA&_nc_ht=scontent.fpnq7-1.fna&oh=a0093a45659683f2a80f6c9dcea3ce1b&oe=5DA80529'
[download] Destination: You’re invited...  Join us in this FREE online masterclass with Marisa Peer –...-2172061039505563.mp4

Description

It looks like a minor thing, it threw warning.
It downloads the video file and plays well.