It’s frustrating that the artist list doesn’t have all of the alphabet. Mine only goes A-L for example. This might be a CarPlay side limitation but either way it’s not great.
If I wanted to play Warren Zevon I can only do it from my phone.
I’ve been using it and have had zero problems so far. Just scrolled down to find White Zombie the other day.
Unfortunately I have no solutions for you. All I can tell you is that I’m running the latest version of PLEX, and iOS 17 on an iPhone 13 mini, and I plug into CarPlay using the USB to Lightning Plug cord. Not sure if any of that info is helpful for comparison.