We just started watching Bosch Season 6. The closed captioning is in a foreign language. All the settings are in English.
Press the * button on the remote and see if there are any other options. Maybe they're mislabeled. Otherwise, it's an issue with the provider. Of course if you're talking about The Roku Channel, I guess that would be Roku.
And if this is streaming from Amazon Prime, they would be the problem? Yes, ?I’m using a Roku device.