Template trigger variables: How to pass an sensor attribute's array?

template:
  - trigger:
      - platform: time_pattern
        minutes: "/1"
      - platform: state
        entity_id: sensor.solcast_pv_forecast_prognose_heute
        not_from:
          - "unknown"
          - "unavailable"
          - "none"
        not_to:
          - "unknown"
          - "unavailable"
          - "none"
    action:
      - variables:
          var: >-
            {% from '032-emhass.jinja' import globalVariables %}
            {{ globalVariables()|from_json }}
          node: "{{ state_attr('sensor.solcast_pv_forecast_prognose_heute', 'detailedForecast') }}"
    sensor:
      - name: solcast_forecast_remaining_today_every_minute
        unique_id: solcast_forecast_remaining_today_every_minute
        #friendly_name: "Solcast Forecast Remaining Today (Every Minute)"
        state_class: "total"
        device_class: energy
        unit_of_measurement: "kWh"
        icon: mdi:solar-power
        state: >-
          {%- set node = state_attr('sensor.solcast_pv_forecast_prognose_heute', 'detailedForecast') %}
          {%- set ts_end_time = ((as_timestamp(now().replace(day=now().day+1).replace(hour=0).replace(minute=0).replace(second=0).replace(microsecond=0))/1800)|round(0,'floor')|int * 1800) %}

          {% from '032-emhass.jinja' import forecastPeriod %}
          {{ forecastPeriod(node, 'period_start', 'pv_estimate', 1, ts_end_time)|float(0) }}
        attributes:
          solar_noon_energy: >-
            {%- set node = state_attr('sensor.solcast_pv_forecast_prognose_heute', 'detailedForecast') %}
            {%- set ts_end_time = today_at(var.batteries_charge_end_time_expected).timestamp() %}

            {% from '032-emhass.jinja' import forecastPeriod %}
            {{ forecastPeriod(node, 'period_start', 'pv_estimate', 1, ts_end_time)|float(0) }}
          solar_noon_time: "{{ var.batteries_charge_end_time_expected }}"
          last_updated: "{{ now() }}"

The data I want to pass (variable node) :

If I pass the node data directly in the sensor state and in the attributes everything works fine.

Passing the node data via action variables results in sensor state unavailable …

The array passed via variable var is working fine:

{%- macro globalVariables() %}
    {{- {
            'inverter_rated_power': 6000,
            'inverter_maximum_active_power': 6600,
            'batteries_rated_capacity': 15,
            'batteries_rated_charge_energy': 17.250,
            'batteries_rated_discharge_power': 6600,
            'batteries_rated_charge_power': 7500,
            'batteries_charge_end_time_expected': '14:00',
            'batteries_soc_setpoint_low': 15,
            'epexspot_quantile_setpoint_low': 0.15,
            'epexspot_quantile_setpoint_neutral': 0.33,
            'epexspot_quantile_setpoint_high': 0.8
        }|to_json -}}
{%- endmacro %}

I really needs to avoid redundant sensor calls because I want’s to setup an Energy Monitoring System with nearly real time monitoring.

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