Due to recent change in Home Assistant template handling float filter should now provide default value
Template warning: 'float' got invalid input 'None' when rendering template '{{value_json.currentZ|float}}' but no default was specified. Currently 'float' will return '0', however this template will fail to render in Home Assistant core 2021.12
So I propose value template for current Z should now look like this:
{{value_json.currentZ|float(0)}}
In version HA 2021.12 the old template will fail to render
Due to recent change in Home Assistant template handling float filter should now provide default value
Template warning: 'float' got invalid input 'None' when rendering template '{{value_json.currentZ|float}}' but no default was specified. Currently 'float' will return '0', however this template will fail to render in Home Assistant core 2021.12
So I propose value template for current Z should now look like this:
{{value_json.currentZ|float(0)}}
In version HA 2021.12 the old template will fail to render