Hi there,
Start here to troubleshoot any channel relates issues you may encounter: https://community.roku.com/t5/Channel-Issues-Questions/Start-Here-To-Troubleshoot-Channel-Issues/td-...
If other channels are working correctly, and troubleshooting does not resolve the issue, please reach out to the channel provider directly to report the issue you are seeing in their channel and request additional support.
Thanks,
Tanner
Did you resolve the problem?
I’m having the exact same problem—I’m logged into the Roku HBO channel, but when I select the episode of the program I want to watch (His Dark Materials), the screen just refreshes instead of starting to play the program.