Why wont my custom-modder card load?

Configuration
1

Nothing displayed on the page of lovelace, all white
I am on 0.79.3

I’ve restarted home assistant and cleared the cache

    resources:
      - url: /local/custom-lovelace/upcoming-media-card/upcoming-media-card.js?v=0.2.2
        type: js
      - url: /local/custom_ui/ecobee-card.js
        type: js
      - url: /local/card-modder.js
        type: module

    name: My Awesome Home
    views:
      - id: 0
        Name: Home
        cards:
          type: vertical-stack
          cards:
            - type: horizontal-stack
              cards:
                - type: custom:card-modder
                  card:
                    type: custom:upcoming-media-card
                    elements:
                      - type: state-label
                        entity: sensor.sonarr_upcoming_media
                  style:                 
                  border-radius: 20px
                  border: solid 1px rgba(100,100,100,0.3)
                  color: "#999999"
                  box-shadow: 3px 3px rgba(0,0,0,0.4)
    ```
2

What do your logs say right when you browse to the lovelace tab that contains this card?

3

I have only one page. It’s blank. No errors in the info either

4

I had something similar when I moved to 0.81.6 . My setup was similar to yours with the “style: below the cards and for some reason it wouldn’t work with the custom:monster-card. I noticed that a recent update showed an example where the “style:” was now just under the “- type” custom:card-modder” heading so I switched and it worked for the monster-card. Can’t say for sure this will work for you but you may want to try. Here is an example of how mine now looks:

- type: custom:card-modder
  style:
     --paper-card-background-color: rgba(43,45,49,0.3)
     --primary-text-color: rgba(255,0,0,1.0)
     border-radius: 12px
     color: rgb(255,255,255)
   card:
       type: custom:monster-card
       show_empty: false
       card:
           type: entities
           title: Low Batteries
       filter:
         include:
            - entity_id: sensor.bat*
              state: '< 50'
5

thanks, but for some reason it’s not liking sensor.sonarr_upcoming_media card Lovelace: Upcoming Media Card