So as of last night the YouTube app on my Nvidia Shield will no longer play "age restricted content." It gives me a warning prompt as it had in the past (annoying), but even after I confirm that I want to continue it gives me another message: "Somethign went wrong. Sorry, this content is age-restricted." and the only option is "Back."
I have confirmed that Restricted Mode is turned off. I have also been able to watch the same video on my PC and phone, using the same account/profile. I tried forcing the YouTube app to close and trying again. I tried signing out and back in. Nothing seems to resolve this issue.
Same here with Firestick, but no solutions found!