Welcome to the Roku Community, @rllyman70!
Thanks for letting us know and for trying to troubleshoot your Roku device. We'd like to take a closer look and help you find the best resolution to the closed caption issues you're currently experiencing on The Roku Channel.
Before proceeding, is all of the content inside The Roku Channel affected by this, or have you observed this on a specific piece of content? In the meantime, kindly try to reboot your router/modem. Fluctuations in your network connection might also be the reason for this.
We'll be looking forward to your update.
Best regards,
Carly
Carly Y.
Roku Community Moderator