When streaming Spotify on my Chromecast Audio it takes around 1-2 minutes until the song starts, before that nothing can be heard. After a certain song has loaded I can play/pause and scrub around within that song. When I skip to the next title, I have to wait 1-2 minutes again until the song loads.
It does not matter if I initiate the Spotify streaming process via Google Assistant or via the Spotify app.
This issue just started appearing today, before that my Chromecast Audio would stream Spotify without any issues.
I've already factory-resetted my Chromecast once, but that didn't resolve the issue.