Core 2021.6.2 to 2021.6.4 kills my REST json sensors

I’ve rolled back to Core 2021.6.2 because I have several bespoke sensors that get their data from a local IP json string. Updating to 2021.6.4 breaks this.

I’m not sure what breaking changes have done this. Has anyone else had local sensors stop working after updating to Core 2021.6.4?

As an example, two YAML sensors reads like this:

- platform: rest
     resource: http://192.168.1.8/j
     name: Carbon Dioxide
     value_template: '{{ value_json.data.co2 }}'
     unit_of_measurement: "ppm"


   - platform: rest
     resource: http://192.168.1.8/j
     name: Noise Level
     value_template: '{{ value_json.data.noise }}'
     unit_of_measurement: "dB"

The local device displays a text json string when accessed via the /j url. In Home Assistant I see two sensors, one for CO2 levels in ppm and another for Noise Levels in dB. This worked fine before. After the update, none of these sensors exist and my home page for these sensors shows as “unavailable”.

Edit: Missing IP values

Fixed in #51799

Thanks for letting me know. My HA still only shows 2021.6.4 as the latest version. I will wait for the newer release and stay on the rolled back version for now.

Thanks for the quick reply.