All custom fields are empty in Twig template

Did access them using different approach, by extending some classes.
Then loading them via {% set civicrm_entity = content.contact_type['#object'] %}
Some code customization which I did: https://www.drupal.org/project/civicrm_entity/issues/3382166#comment-152... ✨ Website URL not exposed Active

Thanks!! We'll be looking into why these fields are not automatically available in the template as variables

Yeah, it's supposed to be there. This is what I see on my end:

"custom_1" => array:18 [▼
    "#theme" => "field"
    "#title" => "Test"
    "#label_display" => "hidden"
    "#view_mode" => "full"
    "#language" => "und"
    "#field_name" => "custom_1"
    "#field_type" => "string"
    "#field_translatable" => false
    "#entity_type" => "civicrm_contact"
    "#bundle" => "civicrm_contact"
    "#object" => Drupal\civicrm_entity\Entity\CivicrmEntity {#2727 ▶}
    "#items" => Drupal\Core\Field\FieldItemList {#2677 ▶}
    "#formatter" => "string"
    "#is_multiple" => false
    "#third_party_settings" => []
    0 => array:3 [▼
      "#type" => "inline_template"
      "#template" => "{{ value|nl2br }}"
      "#context" => array:1 [▼
        "value" => "1234"
      ]
    ]
    "#cache" => array:3 [▶]
    "#weight" => 0
  ]

Maybe check if the the custom fields are enabled on the "Manage display"?

Did a custom template recently and the custom fields were available and showed values when the template was rendered.