Chromecast functionality unreliable
I’m trying to use the Chromecast functionality with an Android TV device, and casting stops within a couple of seconds from starting, music doesn’t actually play at all. The UI disappears, leaving only a generic "casting" throbber. A couple of times if I pressed the Home button at that point and restarted casting, it would start playing in background, and I would be able to re-open it from the Now Playing tab on the home screen.
I tested this with pychromecast 7.1.1 and 9.4.0 (with and without reliability fixes backported from 10.*).