Thumbnail works but no attachment

I’m having trouble showing notification attachments. The thumbnail works fine but the actual attachment shows up as blank. Any ideas on what could be wrong?

I’ve tried both:

  - data:
      title: Person upptäckt på framsidan
      message: Vad vill du göra?
      data:
        attachment:
          url: https://xxxx.duckdns.org/local/kamera_framsidan_latest.jpg
          hide-thumbnail: false
          content-type: jpeg
        push:
          category: camera1
        entity_id: camera.doorbell_last_event

    service: notify.mobile_app_xxx

and:

  - data:
      title: Person upptäckt på framsidan
      message: Vad vill du göra?
      data:
        attachment:
          content-type: jpeg
        push:
          category: camera1
        entity_id: camera.doorbell
    service: notify.mobile_app_xxxx

```

It looks like the content extension (which is basically a small app that runs on the device) has gotten stuck not working. This sometimes happen and the best symptom is that it’s just a white box. Restarting your device should clear up the issue.

I don’t see anything wrong with the service call as written.

Thanks for the quick reply @zacwest! That did the trick.