I have multiple ROKU devices. I am having an issue with one when I stream Apple TV to it the Audio is in Spanish. It would be fine but I don't speak Spanish. I checked the Audio Preferred Language and Language settings and both are set to English. This only happens on the one device so I am confident its a setting somewhere I just can't find it. Any thoughts?
Is this issue only happening on the Apple TV+ channel with this specific device?
Try removing the channel from the Roku home screen by navigating to the channel tile, pressing the * key on your remote and choosing 'Remove channel'. Then restart your device from Settings>System>System restart. Once your player starts up again, add the channel back once more.
Does this clear up the issue you are seeing? Please keep us posted.