As above. Opera's built in ad-blocker stops all youtube videos and thumbnails from loading since opera updated a couple of days back. Turning it off fixes it immediately. Anyone else seeing this? Seen it on three of my machines now.
Youtube has been at absolute war with adblockers for at least a week. The updates from both sides are daily. Any time there's a school holiday, this happens.
My wife uses Opera and, she too can’t play YT videos on it. Going to see what I can do about it, this afternoon. All still works for me on Vivaldi, with ad blocking on but, she prefers Opera. EDIT: Don't know how long this will last but, with the Opera ad blocker disabled and Adblock Plus running, YT is working.
I find it interesting that as soon as I switched off the ad blocker, all the 'watch next' suggestions went political.