Any update on this @Engineer ? We are seeing this frequently too and it recovers after few mins. @mattgreeny @YinzCam_Inc how often is your live activity updated? Ours updates every 60 seconds from server, and I'm wondering if reducing the delay in updates would help.

Just to confirm: You're recommending letting the system handle sending the pushToStart token to the server via pushToStartTokenUpdates. This will work for both new installs and app upgrades, correct? Are pushToStart tokens unique per app, or are they shared across all apps on the device?