Update as of today, I accessed the Google TV app on the phone for both
accounts associated with the Chromecasts, disabled and re-enabled the
YTTV service linked to the account, then restarted each Chromecast. So
far, YTTV is now showing up in the Liv...
Same issue for me, for all four Chromecast in the house. YouTubeTV also
doesn't show up as an account linked service anymore, but I can still
access my live channels through the app and the subscription is active.
I tried factory reset and it worked ...