When it doesn't play back I get this error: https://dl.dropboxusercontent.com/u/7439425/Opera_YouTube.png
Same link works fine in Firefox and Safari.
Clicking on the "Learn More" link does nothing.
Opera Turbo is off (for Netflix reasons)
Opera 39.0.2256.48
Mac OS X 10.11.5
Ghostery installed and active (doesn't work whether active or inactive)
Opera adblocker is active. (It doesn't work either way)