Update MQTT

I like to send some states from iobroker to HomeAssistent.

In iobroker i have an MQTT server, with the client in HOASS i connect and subscribed to two states. i just receive them onece and not ongoing… what can i do… in mqtt explorer (windows) i see the values realtime…

this i have in my configuration.yaml:

mqtt:
  sensor:
    - name: "Tankinhalt"
      state_topic: "EigeneDatenpunkte/0/Heizung/Tankinhalt_aktuell"
      device_class: gas
      state_class: total_increasing
      unit_of_measurement: L
 
    - name: "Wasserstand"
      state_topic: "0_userdata/0/Water/MainFeed/QuantityLiter"
      state_class: total_increasing
      unit_of_measurement: L 
      device_class: water