That is bizarre. You could try contacting Google Nest Support starting with this link:
By the way, there are several posts in this forum about "Live video unavailable". On the first thread below, Google Nest said 4 weeks ago: "Our teams are aware of this behavior and are investigating."
We appreciate your patience with this.
To better understand what’s going on, I’d like to ask some questions.
Give these steps a try:
Thanks for the response @MplsCustomer.
I just wanted to jump in real fast to see if you saw Emerson's reply and to see if you still needed some help on this or if you were able to get it sorted out. If you are still needing some help, just let us know and we'll be happy to continue helping.
I appreciate your help here, MplsCustomer and Emerson.