"color_interlock" not functioning with Athom GU10 bulb?

I picked up a few of these bulbs: https://www.athom.tech/blank-1/esphome-gu10-rgbcw
And slightly adapted the firmware to work as a package. (original here: athom-configs/athom-rgbww-light.yaml at ad06504849039c6efa5a675248e54c6864752d25 · athom-tech/athom-configs · GitHub)
However, I’m noticing that despite ‘color_interlock’ being enabled, the bulbs will keep the white LEDs on when setting the color.
I’m pretty sure this wasn’t the case when I first flashed them with the adapted config, but I’m not 100% in that regard. In any case, they’re currently on ESP home 2024.10.0.
Can anyone id what I got wrong here?

substitutions:
  name: "gu10-bulb-1"
  friendly_name: "Front Bathroom Ceiling Bulb - 1"
  # Sets the HA area
  room: "front_bathroom"
  light_restore_mode: ALWAYS_ON
packages:
  api: !include packages/common/api.yaml
  wifi: !include packages/common/wifi.yaml
  athom_rgbcct_gu10: !include packages/athom_rgbcct_gu10/athom_gu10_rgbcct_base.yaml

packages/athom_rgbcct_gu10/athom_gu10_rgbcct_base.yaml

substitutions:
  # Default name
  name: "athom--gu10-rgbcct-bulb"
  # Default friendly name
  friendly_name: "Athom GU10 RGBCCT Bulb"
  # Allows ESP device to be automatically linked to an 'Area' in Home Assistant. Typically used for areas such as 'Lounge Room', 'Kitchen' etc
  room: ""
  # Description as appears in ESPHome & top of webserver page
  device_description: "Athom 4.5w RGBCCT GU10 light bulb"
   # Restore the light (GPO switch) upon reboot to state:
  light_restore_mode: RESTORE_DEFAULT_ON

  # Enables faster network connections, with last connected SSID being connected to and no full scan for SSID being undertaken
  wifi_fast_connect: "false"
  # Define logging level: NONE, ERROR, WARN, INFO, DEBUG (Default), VERBOSE, VERY_VERBOSE
  log_level: "DEBUG"
  # Enable or disable the use of IPv6 networking on the device
  ipv6_enable: "false"
  color_interlock: "true"
  default_brightness: "1.0"
  default_color_temperature: "263"

globals:
  - id: restore_mode
    type: int
    restore_value: yes
    initial_value: "1"
  
  - id: startup_brightness
    type: float
    restore_value: no
    initial_value: ${default_brightness}
    
  - id: startup_color_temperature
    type: float
    restore_value: no
    initial_value: ${default_color_temperature}

select:
  - platform: template
    name: "Power On State"
    id: "power_mode"
    optimistic: true
    options:
      - Always Off
      - Always On
      - Restore Power Off State
    on_value:
      then:
        - lambda: |-
            id(restore_mode)=i+1;

esphome:
  name: "${name}"
  friendly_name: "${friendly_name}"
  comment: "${device_description}"
  area: "${room}"
  min_version: 2024.6.0
  on_boot:
      then:
        - select.set_index:
            id: power_mode
            index: !lambda |-
                    return id(restore_mode)-1;
        - lambda: |-
              switch(id(restore_mode))
              {
              case 1:{
                      auto call = id(rgbct_light).turn_off();
                      call.perform();
                      break;
                      }
              case 2:{
                      auto call = id(rgbct_light).turn_on();
                      call.set_color_mode(ColorMode::WHITE);
                      call.set_brightness(id(startup_brightness));
                      call.set_color_temperature(id(startup_color_temperature));
                      call.perform();
                      break;
                      }
              default:{
                      break;
                      }
              }

esp8266:
  board: esp8285
  restore_from_flash: true

preferences:
  flash_write_interval: 1min

ota:
  - platform: esphome

logger:
  level: ${log_level}
  baud_rate: 115200

sensor:
  - platform: uptime
    name: "Uptime"
    id: uptime_sensor
    entity_category: diagnostic
    internal: true

  - platform: wifi_signal
    name: "WiFi Signal dB"
    id: wifi_signal_db
    update_interval: 60s
    entity_category: "diagnostic"

button:
  - platform: restart
    name: "Restart"
    entity_category: config

  - platform: safe_mode
    name: "Safe Mode"
    internal: false
    entity_category: config

output:
  - platform: esp8266_pwm
    id: red_output
    pin: GPIO4
    min_power: 0.000499
    max_power: 1
    zero_means_zero: true
  - platform: esp8266_pwm
    id: green_output
    pin: GPIO12
    min_power: 0.000499
    max_power: 1
    zero_means_zero: true
  - platform: esp8266_pwm
    id: blue_output
    pin: GPIO14
    min_power: 0.000499
    max_power: 1
    zero_means_zero: true
  - platform: esp8266_pwm
    id: white_output
    pin: GPIO5
    min_power: 0.01
    max_power: 0.9
    zero_means_zero: true
  - platform: esp8266_pwm
    id: ct_output
    inverted: true
    pin: GPIO13
    min_power: 0.01
    max_power: 0.9
    zero_means_zero: true

light:
  - platform: rgbct
    id: rgbct_light
    name: "Bulb"
    restore_mode: ${light_restore_mode}
    red: red_output
    green: green_output
    blue: blue_output
    white_brightness: white_output
    color_temperature: ct_output
    cold_white_color_temperature: 153 mireds
    warm_white_color_temperature: 500 mireds
    color_interlock: ${color_interlock}