CarPlay with Waze in use is rather messed up atm. There were multiple bugs including some app breaking ones introduced with iOS 15.x. Your problems may be related to one of those. If you want to listen to Spotify music on Waze without limits, then you could try to convert Spotify music as MP3 local files and then you can import them to Waze for offline listening. Here I recommand the tool AMusicSoft Spotify Music Converter to help you. You can get more details from AMusicSoft webpage: https://www.amusicsoft.com/spotify-music-converter/
CarPlay with Waze in use is rather messed up atm. There were multiple bugs including some app breaking ones introduced with iOS 15.x. Your problems may be related to one of those. If you want to listen to Spotify music on Waze without limits, then you could try to convert Spotify music as MP3 local files and then you can import them to Waze for offline listening. Here I recommand the tool AMusicSoft Spotify Music Converter to help you. You can get more details from AMusicSoft webpage: https://www.amusicsoft.com/spotify-music-converter/