I have found a possible solution!!!! I have two homepod (minis), and the following easy 2-step 1-hand 1-mouth solution appears to have worked. 1) First, ask your iPhone to play the channel, e.g. hold down the siri button and "play channel 2 on pandora."  2) Then put the phone on top of the homepod, and it automatically switches to playing on the homepod speaker. This apparently permanently fixes the problem with the homepod speaker, at least for that chanel:  if you play some other pandora stuff, you can later say "hey siri, play channel 2 on pandora" and it will correctly play it!! (At first I thought that the issue may have been resolved, when I noticed it suddenly working on my primary homepod. But today I noticed it not working on my secondary one. So I tried the above trick and presto it worked!!) I hope that: a) This will help future folks who come to this page looking for a solution, and  b) This will help Pandora and Apple to identify and fix this bug. ... View more