VLC player and WEBM format files

[ILOVEVLCPLAYER]

Please forgive me for this first time posting as I have joined this forum only roughly an hour ago.
Right My challenge is this. Let me phrase it rather as a question.

Why can I not play videos obtained off YouTube that are in WEBM format? I can play any other format videos from YouTube but not the WEBM ones. Please inform me if VLC can play them and how I can either download something to add to my player program or how to adjust the player version I have to enable it to play WEBM files. My VLC version is 3.0.8 Vetinari.
I have used VLC player for a number of years and is the only one I recommend to friends and people who ask me for the name of the best player available. So, I am looking forward to an answer to my challenge soonest. Be Blessed any and all on this forum.

[Lotesdelere]

Why can I not play videos obtained off YouTube that are in WEBM format?

How did you obtain these videos ?

Please open Tools -> Messages (set Verbosity to 2) before you start the playback, and then paste the full resulting log here or on Pastebin.com if it's too long.

Also upload a short sample of an original problematic file to Zippyshare.com (200 MB max) or to WeTransfer.com and then post the link to the file here.
http://www.zippyshare.com
https://wetransfer.com

If needed cut it with DGsplit and read here about how to do it:
http://forum.videolan.org/viewtopic.php?f=14&t=57724&p=193335#p193335
100 MB max should be enough.