Google Home, device "isn't available right now"

All the sudden my Google Home can no longer turn of a smart outlet named “TV”. It will just say “It looks like the TV isn’t available right now”. It says the same thing for other smartthings switches? Anyone have any ideas? I reauthorized access to the ST devices, but no change.

More info:

The firmware update was rescheduled for today. Maybe some other update???!

Same problem. Can’t get Google Home to do anything with SmartThings. It authorized and worked fine for over a week, then suddenly thinks nothing is available.

Disconnecting the SmartThings hub from my network for a bit and then reconnecting fixed it for me.

I have the same issue. Do you know how to solve the problem?