MAX app won’t support DOLBYVISION or ATMOS sound. It’s been 2 weeks latest update didn’t fix
The content and frame rate won’t match when DOLBYVISION is available. Atmos sound will not play when available.
Update your Apple TV system software to the current version, if not done already. How to update your Apple TV - Apple Support
Try this for any misbehaving app:
- Force-quit the app, then relaunch and try again.
- If the issue persists, force-quit the app, restart the device, then relaunch and try again.
- If the issue still persists, delete the app, re-download and try again.
- If the issue still persists, then contact the app developer for further assistance.