I have the latest beta version of the iOS app. If I open the app while the phone is connected to the car via Carplay, the system will be convinced that my phone is in the middle of a call. In fact, the first time this happened, it tried to call itself constantly until I disconnected the cable. Meanwhile, it hijacks all the speakers, producing no sound at all. Changing audio sources on the radio head unit doesn’t fix this. The only way to regain audio control is to exit the app.
We sometimes like to keep an eye on our property while driving. This bug makes it impractical or impossible to use the app while connected to Carplay.
iOS 12.1 (iPhone XR)
All cameras on latest firmware as of 12-18-18