Are you are you getting the error "This video is unavailable to watch on this device. Watch this video on a supported device" when you go to rent or purchase a show on your Android or Apple device?
This error is coming from Amazon. Amazon appears to have an issue with certain devices using their mobile app. To get around this error on your mobile device, you'll need to not use the Amazon mobile app, but go to www.amazon.com on a web browser instead.
Be sure to log into the same Amazon account that is connected to VidAngel.