Since yesterday the notifications stopped working, "waiting for data" is displayed. All other widgets that use Bluetooth work correctly. GCM has been granted permission to access notifications. GCM is version 3.8. I had not made any changes to the Fenix 3 or phone.
Edit: solution found, reset F3 to defaults.
I'm unable to test with other phones or Fenix devices at the moment. I tried rebooting Fenix, phone, reinstalling GCM, revoking and re-granting notifications access.
I would really appreciate help to solve this!