Card was there in a dashbaord, then disappeared

[atclaus]

Checklist:

• [x] I updated to the latest version available
• [x] I cleared the cache of my browser

Release with the issue: v6.14.3

Last working release (if known): n/a

Browser and Operating System: Firefox on PC, iOS HASS app HASS running on Raspberry Pi 4 with HASS in a docker container Core 2023.12.3 Frontend 20231208.2

Description of problem:

• might be my own mess up of install. apologies if so. but it worked then stopped
• Get via HACS
• Was prompted at download that and downloaded

When downloaded this will be located in '/config/www/community/custom-sonos-card'

After the download completes, since you are not using Lovelace in storage mode you need to manually add the resource with these settings:
                url: /hacsfiles/custom-sonos-card/custom-sonos-card.js
                type: module

• found at www/community/custom-sonos-card/custom-sonos-card.js
• modified configuration.yaml to the below (some form the of the second URL worked, then without recalling a change, stopped when I next opened the app? Tried various versions of the url, going to ../www/commu... and so on, to no avail.

lovelace:
  mode: yaml
  resources:
    - url: /webrtc/webrtc-camera.js
      type: module
    - url: /www/community/custom-sonos-card/custom-sonos-card.js
      type: module

• showed and worked in browser, phone, iPad.
• next time went to use, failed to be found. Do not recall any changes to HASS in between (was just a few hours)
• get that "custom element does not exist", and no longer in UI editor as option, unlike the webrtc-camera

Javascript errors shown in the web inspector (if applicable):

Additional information:

[punxaphil]

I can't see that this error is because of the Sonos card. Sounds like a more generic issue with your setup. You could try with other custom cards from HACS, I'm quite sure if you get them to work this will also work.