iPhone No sensor Updates/app close

[vwtuner]

The problem

My iPhone no longer provides sensor data when the HA is closed, as soon as the app is opened everything works.
The problem has existed for about 2 weeks.

What version of Home Assistant Core has the issue?

24.11.2

What was the last working version of Home Assistant Core?

24.11.1

What type of installation are you running?

Home Assistant OS

Integration causing the issue

No response

Link to integration documentation on our website

No response

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response