Google Nest Community

I experienced a issue that I can't call my home devices from the app.I clicked the call devices blcok from rhe app.It brings me to the calling screen.Then the call ended immediately,with an unkown error.Screen recording:https://drive.google.com/file/...

I can't use the brodcast message feature in the home app.It will show a error that I haven't complete assistant settings.But broadcast message directly from phone's google assistant works.