About a week ago, I started having the following problem:
Anytime I start watching a new episode of a TV show, it starts playing with English subtitles on by default. The default used to be with subtitles off. I figured out how to use the down arrow on the remote to turn the subtitles off, but this only temporarily turns them off. If I watch a new episode of a TV show, they're back on again, and I have to turn them off again. They even turn back on if I pause watching a show for even a fairly short time. This is quite frustrating!
Can anyone help?
You didnt mention your Roku model # or firmware version (Settings/System/About) or Apple TV app version (highlight the app and press Options (*) on the remote)
You are limited to adjusting the subtitle behavior either locally (in-app, which you've done) or globally (Settings/Accessibility/Captions mode).
If an app uses its own local/internal subtitle processing, the global/Roku settings wont matter.
2 things to try:
1) Modify the subtitle format within the Apple TV app (Settings/Accessibility/Subtitles and Capationing) and see if that changes the subtitle behavior.
2) Try re-installing the Apple TV app:
A) Remove the Apple TV app (Highlight the app, press the Options (*) button on the remote, then Remove)
B) RESTART the Roku (Settings/System/System restart/Restart) <-- MUST DO THIS HERE!!!
C) Re-install the app
(Otherwise, settings/cached data associated with the app are left behind and it wont be a clean re-install)
If that doesnt work, you'll need to contact Apple support and address the issue to them.