@YouTube @Chromecast @Google why do captions come on every video even though I turn them off everytime? How do I turn them off and keep them off?
Sorry to hear you're still having trouble. If you haven't already, try reinstalling the app and see if it does the trick. If that doesn't work, please send a feedback report directly from YouTube with these steps: https://yt.be/help/feedback – it's how we investigate & fix issues.