Unable to get my statistics sensors

Configuration
1

Dear all,

I would like to use some statistic sensors:

This is the entries in my sensors.yaml:

  - platform: statistics
    entity_id: sensor.aqara_thp_temperature
  - platform: statistics
    entity_id: sensor.mijia_th_1_temperature
  - platform: statistics
    entity_id: sensor.mijia_th_2_temperature
  - platform: statistics
    entity_id: sensor.aqara_thp_camera_temperature
  - platform: statistics
    entity_id: sensor.aqara_thp_cameretta_temperature

Those sensors are in the recorder entities list (I can see their history) and track the temperature in different rooms.
Recorder integration is working just fine.

The problem is that:

  1. I can’t find any “statistics” sensors in the Dev tools → Statistics page; please note that in that page I see other statistics sensor (e.g.: the ones related to power consumption!)
  2. I can’t use any “temperature” sensor in the Statistics Graph Card

Checking the logs, I can’t find anything related to “statistics” or “temperature”, so I am a bit lost here.

What am I missing?