I think this a Roku issue but I'm not an expert on Closed Captions (cc). When I download an mp4 with embedded cc and play it an app on my computer the cc shows up as expected. When I watch the mp4 on my Plex server through my Roku the cc doesn't show. I've checked the setting on my Roku but the screen is telling me that there is now cc available. Does someone know how to fix this?