Person Card is not showing user's profile photo nor icon

[LightMoon]

Describe the bug

I am not sure if this functionality is broken or it is due to my bad configuration but I read the documentation and implemented as is.

Expected behaviour To see the user's photo on the card

Screenshots However, what I see is this instead.

Additional context Hass.io version

Core
2024.3.0
Supervisor
2024.02.1
Operating System
12.0
Frontend
20240306.0

Related Card Config

  - type: horizontal-stack
    cards:
      - type: 'custom:button-card'
        template: card_person
        entity: person.saeed
        variables:
        ulm_card_person_entity: person.saeed
        ulm_card_person_use_entity_picture: true
        ulm_card_person_icon: mdi:face-man
        ulm_card_person_battery: sensor.battery_iphone
        ulm_card_person_eta: sensor.waze_travel_time_person
        ulm_address: sensor.s10_mike_gegeocodeerde_locatie