problem tempalte sensor / image processing process

[pilot1981]

The problem

Hi, I'm using image process to process images of my license plates.

to use it with automation I created these sensors templates:

template:

targhe auto

• sensor:
  • name: "targa_ELxxxKF" unique_id: plate_recognizer_elxxxkf state: "{{ state_attr('image_processing.platerecognizer_telecamera_cancello_profile_000', 'watched_plates').elxxxkf }}"
  • name: "targa_GFxxxKY" unique_id: plate_recognizer_gfxxxky state: "{{ state_attr('image_processing.platerecognizer_telecamera_cancello_profile_000', 'watched_plates').gfxxxky }}"

the result is:

• some time I receive a gray/empty image

• I have this errors in HA logs:

• `Logger: homeassistant.helpers.event Source: helpers/template.py:570 First occurred: 7 ottobre 2023 alle ore 12:42:46 (57 occurrences) Last logged: 12:41:06

Error while processing template: Template<template=({% for package in states.sensor.seventeentrack_packages_in_transit.attributes.packages %} >- {{ package.friendly_name }} ({{ package.tracking_number }}): {{ package.info_text }} {% endfor %}) renders=236> Error while processing template: Template<template=({% for package in states.sensor.seventeentrack_packages_in_transit.attributes.packages %} >- {{ package.friendly_name }} ({{ package.tracking_number }}): {{ package.info_text }} {% endfor %}) renders=240> Error while processing template: Template<template=({% for package in states.sensor.seventeentrack_packages_in_transit.attributes.packages %} >- {{ package.friendly_name }} ({{ package.tracking_number }}): {{ package.info_text }} {% endfor %}) renders=244> Error while processing template: Template<template=({% for package in states.sensor.seventeentrack_packages_in_transit.attributes.packages %} >- {{ package.friendly_name }} ({{ package.tracking_number }}): {{ package.info_text }} {% endfor %}) renders=248> Error while processing template: Template<template=({% for package in states.sensor.seventeentrack_packages_in_transit.attributes.packages %} >- {{ package.friendly_name }} ({{ package.tracking_number }}): {{ package.info_text }} {% endfor %}) renders=252> Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 568, in async_render render_result = _render_with_context(self.template, compiled, kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 2198, in _render_with_context return template.render(kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/jinja2/environment.py", line 1301, in render self.environment.handle_exception() File "/usr/local/lib/python3.11/site-packages/jinja2/environment.py", line 936, in handle_exception raise rewrite_traceback_stack(source=source) File "