Laat two posts seem to be a different issue than what this thread was originally about.

There was a recent issue with a recent android release related to whether or not the client device had native ac4 support rather than the cloud transcoding service (not sure of your phone but the chromecast ...

Seemingly same issue in Kansas City, all three non-DRM channels in KC (104.1, 119.1, 138.1) are not playing back on Android (Chromecast 4k and Android phone) or on roku tv. Not for sure but seems to have started since the updated HD apps installed this week. They are still working on the same ...