Inconsisent casting to Chromecast Audio

[pseabrook]

I'm struggling with being able to consistently start casting to my Chromecast Audio. I'm trying from Webplayer on a Windows 10 pc and the Spotify app on a oneplus 5t. I can cast from other apps like tunein with no problems but Spotify often does nothing despite the Chromecast showing up the connect to a device list. I've been able to get it to work by going into android settings and force stopping the Spotify app but this seems pretty heavy handed. App version 8.4.32.623

Any suggestions how get Spotify to work better with Chromecast?