Camera Snapshot - Can't find the file

Configuration
1

Hello, trying to grab a snapshot to use as the camera preview image. Clicking the camera opens the stream fine.

Here is Automation

alias: BackRightSnapshot
description: BackRightSnapshot
trigger:
  - platform: time_pattern
    seconds: /5
condition: []
action:
  - service: camera.snapshot
    target:
      entity_id: camera.BackRight
    data:
      filename: /tmp/snapshots/br.jpg
mode: single

whitelisted here in config yaml - blasting wildly


homeassistant:
  allowlist_external_dirs:
    - "/tmp/"
    - "tmp"
    - "tmp/"
    - "/tmp"

no errors on the automation - do NOT get the “can’t write file” error that is commonly seen

but the directory is empty

I searched the whole computer and find the file here:

/var/lib/docker/overlay2/d2734fce6e294f4007d743e0e3f97619a364314a4d4b361f65f7cd6bfa7130ea/merged/tmp/snapshots/br.jpg

So I am confused - it IS creating the snapshot, just ending up in wrong spot/

Update 1, the br.jpg file above is not a snapshot of the stream, it is a copy of the still-image in the config - so I am still confused

Update 2, changed the camera object to


camera:
  - platform: ffmpeg
    input: rtsp://192.168.0.71/ch01/0
    name: BackRight

And now the log says:

BackRightSnapshot: Already running
10:51:15 PM – (WARNING) Automation - message first occurred at 10:49:10 PM and shows up 16 times
Timeout reading image.
10:50:35 PM – (WARNING) /usr/local/lib/python3.9/site-packages/haffmpeg/tools.py

update 3: calling ffmpeg directly from command line grabs the screenshot fine so i might go down that path in separate script

update 4:

issue is now confined to the picture-glance card

If I specify still image and stream, the image never loads - but if I click the stream opens fine

If I specify still image and no stream, the image loads - but cant click for the stream obviously.