I am having similar issues with casting to my google home.
Using voice commands my google home does not want to play some of my stations such as my Rock station I have tried directly casting to the device from the pandora app on my phone but it will end the casting session and wont play Only work around I have found is to ask google to play an artist stastion that I have not added to my Radio list For example "Hey Google Play Red Hot Chillie Peppers on Pandora" works but "Hey Google Play my Rock Station on Pandora" doees not.
Moderator Edit: Edited title for clarity
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