Device tracking does not work anymore

[markusspa]

Model Name: iPhone 14 Pro & iPhone 12 Pro

Software Version: iOS 17.3.1

App version: Home Assistant Companion App 2024.1 (2024.535)

Home Assistant Core Version: 2024.2.1

Description of the bug: The location of my device is not updating anymore. That is why I am always home although I left the home zone. I checked all preferences in iOS settings as well as the settings of the HA App (Location, Background activities, ...). VPN works well. My girlfriend has exactly the same problem.

The activity protocol in the app shows a lot of errors. Perhaps it helps to solve the problem. The errors are always the same:

• Webhook failed with status code 503
• Didn't update [...] (Schared.BackgroundTaskError-Fehler 0.)

Expected behaviour: When I am leaving the home zone, Home Assistant changes my status into "away".