Hey there i had the same issue today, subtitles came on out of no where, there are NO options in the Disney+ app on my roku to turn them off, or any other settings that can control settings like that, the only thing i could do was press * on my roku remote and that is took me to the settings for the tv not the app, and of course the closed captioning option was turned off, i tried to update the app, it was up to date, i tried unplugging the tv, i reset the roku from the roku home screen, i tried checking my disney+ app settings from my account online again no such options, and i tried every other suggestion i could find from the internet, NOTHING worked, so i removed the Disney+ app from my roku, and then readded it, logged back in and subtitles were gone, apparently this is a glitch within the app itself, u can remove the app by going to the roku home screen, go to the Disney+ app, press * button on remote, go to remove channel or app option, click on it, then go to roku home screen search, type is Disney+ and proceed to download the app.
