Home Hub & location-based automation not working

Hello ,

Thank you for reaching out to Apple Support Communities.

Let's reset your Location settings back to factory and test. This will hep us further isolate the issue:

Turn Location Services on or off

You can turn Location Services on or off at Settings > Privacy > Location Services. You can turn Location Services on either during the Setup Assistant process or later through the Location Services setting. You can individually control which apps and system services have access to Location Services data. When Location Services are off, apps can't use your location in the foreground or background. This will limit the performance of various Apple and third-party apps.

If you would like to reset all of your location settings to the factory default, go to Settings > General > Reset and tap Reset Location & Privacy. When your location and privacy settings are reset, apps will stop using your location until you grant them permission.

More details can be found here: About privacy and Location Services in iOS and iPadOS

If the issue persists, can you provide a few more details? When did you first notice this? What are you using for your HomeKit Hub? Also, what is your exact iOS version?

Cheers!