Automations with "zone" trigger don't work anymore

The problem

I have two automations that are triggered when I leave the house and when I return. They have worked faultlessly for more than a year until April. Since the May update, however, the automations are only triggered sporadically - sometimes one of them, but usually none at all. I can’t find a cause for this - the person’s status is still recognised correctly and the absence times are correct.

How can I find out why the automations no longer trigger?

What is version of Home Assistant Core has the issue?

2021.6.3 (issue first seen in 2021.5.x)

What was the last working version of Home Assistant Core?

2021.4.x

What type of installation are you running?

Home Assistant OS

Integration causing the issue

zone

Link to integration documentation on our website

https://www.home-assistant.io/integrations/zone/

Example YAML snippet

alias: Abwesend
description: ''
trigger:
  - entity_id: person.jens
    event: leave
    platform: zone
    zone: zone.home
condition:
  - condition: state
    entity_id: input_boolean.heating_mode_auto
    state: 'on'
action:
  - service: input_select.select_option
    target:
      entity_id: input_select.heating_mode
    data:
      option: abwesend/zeitgesteuert
mode: single



alias: Anwesend
description: ''
trigger:
  - entity_id: person.jens
    event: enter
    platform: zone
    zone: zone.home
condition:
  - condition: state
    entity_id: input_boolean.heating_mode_auto
    state: 'on'
action:
  - service: input_select.select_option
    target:
      entity_id: input_select.heating_mode
    data:
      option: anwesend/zeitgesteuert
mode: single

Anything in the logs that might be useful for us?

I don't think so

Additional information

[breti]

This one works:

trigger:
  - platform: state
    entity_id: person.jens
    from: home

resp.

trigger:
  - platform: state
    entity_id: person.jens
    to: home

So it’s clearly related to the “zone” integration trigger.

[breti]

Sorry, I didn’t try a zone-based trigger again. I don’t think there’s any point in trying again and again unless a developer looks at it and at least gives some tips on which log files might be relevant.