Not all sensors appear in home assistant

Hi, Home Assistant beginner here. I am trying to display a few sensors that get their information by polling a rest endpoint.

I used the following configuration:

sensor:
  - platform: rest
    resource: http://win_vm:5050/item/Matrikon.OPC.Simulation.1/Random.Int1
    value_template: '{{value_json[0]}}'
    name: Value1
  - platform: rest
    resource: http://win_vm:5050/item/Matrikon.OPC.Simulation.1/Random.Int2
    value_template: '{{value_json[0]}}'
    name: Value2
  - platform: rest
    resource: http://win_vm:5050/item/Matrikon.OPC.Simulation.1/Random.Int3
    value_template: '{{value_json[0]}}'
    name: Value3
  - platform: rest
    resource: http://win_vm:5050/item/Matrikon.OPC.Simulation.1/Random.Int4
    value_template: '{{value_json[0]}}'
    name: Value4

But Home assistant displays only two of those values.

What am I missing?

Update: Seems to be an issue with the rest sensor. Other sensors appear without problems.