Your Pi needs to be restarted after the initial installation of the myDevices Cayenne agent. Else, there are issues with getting the sensor data into the dashboard.
We are working on creating a better experience for this. I.E. automatically restarting your Pi for you. Will update here when completed.
My Pi’s do not reconnect to the dash board after clicking reboot. Tried with my zero and then my B+ Do I need to generate a new install after restarting?