I have Raspbian Jessie, standard updates (dist-upgrade, not rpi-update) on a RPi3. This problem occurs in Chromium. I have the standard pi foundation extentions, plus "uBlock origin extra" installed.
A few days ago youtube started to say "If playback doesn't begin shortly, try restarting your device" with the spinning dots infinitely cycling.
If I restart the pi, it will play a minute or so of a video before the it stops and the message appears with the spinning-logo-dots. No furthur playback will occur.
I've tried reinstalling the rpi mods, but no luck.
Kweb works nicely, but is finicky about what videos it will pass to omxplayer, so not a perfect solution, plus I'd like to be logged in to my youtube account.
Not wanting to have to resort to the command line youtube-dl for every vid, I'm wondering if anyone has any hints at troublshooting? For instance, is there a log file for chromium?