I am triggering a background fetch by using the content-available flag on a push notification. I have the fetch and remote-notification
You can change your target's launch settings in "Manage Scheme" to Wait for , which allows you debug by setting a breakpoint in application: didReceiveRemoteNotification: fetchCompletionHandler: and sending the push notification to trigger the background launch.
I'm not sure it'll solve the issue, but it may assist you with debugging for now.
