Media URL for iPhone Notifications not recognized

Hi all,

Looking for some advice on how to embed media from a specific folder within the “/media” directory into a notification for iPhone. So far I have followed the guide here and am able to add attachments from the root of the “/media” folder just fine. However, I would like to create subdirectories and pull media from those so as to not clutter up the main media directory. When I try to pull media from a subdirectory, it gives me an error in my notification saying the URL is invalid. Here is my automation, any help would be greatly appreciated. Thanks.

alias: Doorbell Notification and Snapshot
description: >-
 Sends a notification to the family that someone has rang the doorbell and
 provides a snapshot plus a link to a live view.
trigger:
 - platform: state
   entity_id:
     - binary_sensor.front_doorbell_ring
   to: "on"
   from: "off"
condition: []
action:
 - service: camera.snapshot
   data:
     filename: /media/Doorbell Notifications/recent.jpg
   target:
     device_id: (id_goes_here)
 - service: notify.family
   data:
     message: Someone rang the doorbell.
     title: Doorbell Alert
     data:
       image: /media/local/Doorbell Notifications/recent.jpg
       actions:
         - action: URI
           title: Live View
           uri: /lovelace/cameras
mode: single