I've had my Charge 4 for a while. It synced to Strava pretty reliably although occasionally I needed to revoke and then restore permissions. But the last few weeks it is not syncing to Strava unless I revoke and restore permissions for every activity. I would reset the permissions and test them by walking up and down for a minute, it would sync to Strava. Then the next morning it would not sync my run to Strava. I reset the permissions immediately before a run and it synced to Strava. Then after the run I tried to record my walk home. Didn't sync to Strava. Super frustrated.
