Hello @Jillie
We're sorry to hear about the issue you're experiencing.
If the problem continues even after attempting the clean install troubleshooting, while videos from other channels play fine, contact the channel provider's customer support team to report the issue and get help.
Channels on Roku are maintained by the channel developer themselves. In this case, there's likely an issue within that specific channel that needs to be addressed with an update from them.
Thank you for your understanding.
All the best,
Kariza
Kariza D.
Roku Forum Moderator