Hi,
I've been using my vivoactive 4 for the past two months and have never gotten my Sony WF-1000XM3 Bluetooth Earbuds to work reliably with my watch. It pairs fine, and plays fine with stable connection while I am not in an activity, but as soon as I attempt to locate a GPS signal before the start of the activity, the music starts and stops repeatedly. Even when the signal is found, the reliability doesn't improve. Turning off the GPS Search instantly stops the intermittent music playback.
I was wondering if other users were facing the same problem and have gotten it to work for their set of earbuds and their vivoactive 4. I know other users have had issues pairing their earbuds with their watch (https://forums.garmin.com/sports-fitness/healthandwellness/f/vivoactive-4-series/229620/bluetooth-music-and-gps-fail/1091467#1091467), but I have no issues with that. Pairing and unpairing doesn't work either. I've tried a complete reset of my watch but it hasn't worked either. It also isn't a matter of the side I wear my watch on (https://forums.garmin.com/sports-fitness/healthandwellness/f/vivoactive-4-series/239326/running-with-gps-and-music-seems-unstable); the WF-1000XM3 is True Wireless but AFAIK it pairs primarily on the left and I wear my watch on the left as well.
Thanks!