Empty sValue for Netatmo CO2

[larky]

I want to start a fan if the CO2 level is high, the CO2 is measured with Netatmo sensors.
The problem is that the sValues of the CO2-sensors, and only CO2-sensors is missing in the events, "Show current states" list.
I tried to write the value to the log and it shows up as a empty value.

Skärmbild-Domoticz - Google Chrome.png (127.07 KiB) Viewed 896 times

The graph for all 3 CO2-sensors are normal with no missed readings.
Domoticz v3.4834
Any simple workaround?

[larky]

To get around the problem I created a dummy sensor and a bash script updating the dummy with a value that is taken from a XML json, figuring that a new sensor with data from a text file would always show up with a sValue.

The new dummy sensor is listed under Utility sensors, and updated every few minutes from the script, and here is the terminal output for the update, first I echo the value to the terminal;

CO2level=601

HTTP/1.1 200 OK
Content-Length: 53
Content-Type: application/json;charset=UTF-8
Cache-Control: no-cache
Pragma: no-cache
Access-Control-Allow-Origin: *

{
"status" : "OK",
"title" : "Update Device"
}

If I understand the echo output, the CO2 value written to the virtual sensor does not start with a whitespace or something else, and since the virtual sensor graph is correct everything should work.

But it gives the same error.

The table 'Show current states' now give me 4 empty values, 3 real CO2 sensors and one virtual.

[larky]

I created a virtual temperature sensor with the same value, and that sensor is working as it should.