Huawei P10 Lite (my account)
Huawei Mate 20 Lite (account of my wife)
Android 8, Spotify: 184.108.40.2062
Android 9, Spotify: 220.127.116.112
My Question or Issue
Chromecast Audio worked yesterday, but today it just won't connect. On both Android smartphones. Chromecast Audio gets a "connection" sound, but Spotify fails to connect. Restarted phones, checked updates, configured Chromecast Audio from scratch. Some Android freeware player has no problems connecting to Chromecast Audio.
I then tried my company iPhone... my Spotify account. And it connected with no problem and now I can "remote control" the Chromecast session on my Android/Desktop. It seems very likely, there's a problem with this Android version.