@EJ Thanks for the note. You'll want to contact Apple TV support to report the issue you are seeing and request additional help with their channel on the Roku platform.
In general, we recommend trying the following to troubleshoot channel issues:
1. Remove the channel from the Roku Home screen by navigating to the channel tile, pressing the * key and choosing 'Remove channel'.
2. Restart your Roku device from Settings>System>System restart
3. Once your device restarts, add the channel back once more from 'Streaming channels'.
Feel free to send me a private message with your Roku device's serial number from Settings>System>About, along with your Apple ID email address and any other details about your account, location, etc. I can help pass this feedback along to the channel provider.