Audio Descriptions won't turn off in Amazon Prime App on Apple TV

I found the solution in a roundabout way, so I thought I'd post it here to help other people who run into this. Past discussions that I could post this to are too old.

I resumed watching an episode today in the Amazon Prime app on my Apple TV, and I heard a voice-over description interrupting that I've never heard before. I had already checked the Apple TV's accessibility settings and the audio descriptions were already turned off. And I checked in the Prime app's settings too. Every possible voiceover or "voice view" was off.

I found this old Reddit post that mentioned this:

By xxxopher:

"On Amazon Video, while watching the video, swipe down for a menu, highlight "Audio", move down to Language, highlight "English (U.S)" and select, that turns it off. For some reason the os automatically selected "English (U.K.) AD". Why "English (U.K.) AD" also adds AD (Audio Description) is odd. But there we are."

My settings were already set to "English (US)", so I tried setting them to "English (UK)", and that fixed it! So I'm guessing that if you are having this same problem, try toggling this setting either way to solve it.