That's interesting ! I clicked on the link you provided and i'm seeing my video. But when i execute the command line

C:\Program Files\YoutubeDL>youtube-dl -F Yc74rOEtCFY
[youtube] Yc74rOEtCFY: Downloading webpage
[youtube] Yc74rOEtCFY: Downloading video info webpage
ERROR: Yc74rOEtCFY: YouTube said: This video is unavailable.

...The vid is not available. Thanks for you help, I'll try contact YouTube.