That's quite strange! Are you using Alexa in conjunction with your Revolve speaker to do this? How exactly are you 'asking' your Revolve speaker to play the channel?
Thanks for coming back to us!
I would recommend removing SiriusXM from your Alexa App and then re-adding it.
Can you confirm which speaker you have using the product identifier HERE? The SoundLink Revolve does not support Alexa on its own but can be connected to an Alexa device using Bluetooth.
I look forward to hearing from you!