First I had no sound on the Apple channel, now I don’t have sound on Amazon Prime either. Netflix and other channels play just fine. I’ve deleted the channel and reinstalled it with no change.
Thanks for getting in contact.
What Roku model device are you using?
For clarification, have you restarted your Roku device after removing the channel and before adding the channel back?
We recommend taking a look at the troubleshooting steps provided by our Support page here: What should I do if I do not hear the audio from my Roku® streaming player? | Official Roku Support
Keep us posted and we'll continue assisting from there if needed.