I own an Edge 530 and Instinct. I have set LiveTrack to auto start with an activity. LiveTrack does autostart with both devices. I prefer that LiveTrack only be activated when I use the 530 and not the Instinct. I have selected the 530 under the devices page of the LiveTrack settings as instructed on the Garmin LiveTrack support page:
"If you have more than one Garmin device paired with the Garmin Connect app, make sure you select the right one under Devices in the LiveTrack settings before you start your activity."
The instructions imply that only the selected device with start LiveTrack. Am I missing something?