Receiving error: TypeError: Cannot read properties of undefined (reading 'styles')

[thewolfman56]

Card was working until I updated this morning to v1.4.1.
I was using the following code for the card.

type: custom:room-card
title: Pool
hide_title: false
icon: mdi:pool
show_icon: true
info_entities:
  - entity: sensor.water_sensor_1
    show_icon: false
  - entity: sensor.water_sensor_1
    show_icon: true
    icon: mdi:pool-thermometer
  - entity: binary_sensor.heat_pump
    name: Heat Pump
    show_name: true
rows:
  - entities:
      - entity: light.pool_lights_no
        name: Pool Light Group
        tap_action:
          action: toggle
        hold_action:
          action: more-info
      - entity: light.baja_light
        tap_action:
          action: toggle
      - entity: light.pool_lights
        tap_action:
          action: toggle
      - entity: light.grotto_light
        tap action: toggle
      - entity: light.waterfall_light
        name: Waterfall Lights
        tap_action:
          action: toggle
  - entities:
      - entity: switch.waterfall_scene_switch
        name: Waterfall
        icon: mdi:pool
      - entity: switch.waterfall_scene_switch
        name: Waterslide
        icon: mdi:slide

I tried starting a new card from a blank template. As soon as I enter just the following code, I receive that error in the visual editor

type: custom:room-card
rows:
- entities:

I tried down-grading to v1.3.9 and still receive the same error now.

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[marcokreeft87]

You are missing show_icon: true on the last 2 entities. I had the same error for a second there. But when I saved it was gone. Can you try to redownload the card?

[marcokreeft87]

Good thing is, I can confirm that 1.4.1 doesnt have the issue. But its not ready for release :(

[marcokreeft87]

We going to continue in #56