Utilitymeter doesn't update correctly

[terminus]

Hi Guys,
I have issues with one of my utility meters. I have a ESP-Cam water meter reader (this one
which reports via mqtt to my home-assistant instance. I convert the m3 value in liters by a template sensor:

      wasseruhr_in_litern:
        friendly_name: "Aktueller Stand Wasseruhr"
        availability_template: "{{ states('sensor.wasserzahler') not in ['unknown','unavailable', ''] }}"
        unit_of_measurement: "L"
        value_template: "{{ ( states('sensor.wasserzahler') | float * 1000 ) | round(3) }}"

The utility meter references on the value of wasseruhr_in_litern but it doesn’t updates correctly. Any ideas:

[zigomatic]

Can you explain a bit more ?
What is the configuration of your utility meter ?
Do you have done a restart in between ?
The below line value is 0 ?
Do you have check in developper tool the value or used normal graphic card just to be sure.

[terminus]

Of course! The utility meter config is nothing secial as it is:

  wasserverbrauch_d:
    source: sensor.wasseruhr_in_litern
    cycle: daily

Restarts could have happened, not sure but in my numerous other utility meters that doesn’t alter the outout.

The below line is strangely:

This is the Graph of the developer tool - increasing as the other graph

[zigomatic]

It seems stopping when your target data have some cutoff. No ?

[terminus]

I think it shouldn’t. Sometimes the esp cam doesn’t detect the correct value properly and delivers NAN but the utility meter should ignore this and should compute if the next normal numeric value is available