AntennaPod disappeared from Android auto

App version: 3.7.0 from Google Play
Android version: 15
Device model: Samsung S25

This morning I started Android auto in my car (Opel Ampera e) and AntennaPod was no longer there - while I used it yesterday.
I tried “Customize” and AntennaPod is not on the list of available apps.

Weirdly enough, when I started a podcast from my phone, it played on the car stereo even if neither Android auto nor the car’s own Media app were showing any sign of audio being played.

Is this a known problem/update in either AntennaPod or Android auto, or is it just my phone/car?
And how can I try to fix it?

AntennaPod re-appeared on the next drive, so I expect this to be some glitch in the car’s system, most likely unrelated to AntennaPod.

I would close (or even delete) the topic, but I do not know how…