Note 9 after update to Android 9.
Get message when try to send audio file from Wahtsapp "You may not have a proper app for viewing this contant".
While you can share same audio file from Samsung Musick App to any Whatsapp contact.
Restart Note 9 many time, same result.
Checked update for Samsung Music , same result.
Uninstalling Whatsapp & Restart note 9, then Google Play Store not opening.