Hi,
Battery cam streams don’t work yet, but are in progress. Totally new API and way that streams work.
As for the Automation, it’s hard to tell from this since these logs are all about stream issues.
To debug automations check out troubleshooting on the nest instructions about how to look for which pubsub messages are published. In the cloud console you can run a test subscriber and see if the message is published and observed in the console… You can compare with turning on debug logging for homeasisstant.components.nest (only!) And see what events are delivered to home assistant.