We are working on adding Fire TV support to our existing application that's already live in the Amazon Appstore. We are currently using the beta testing feature of the developer console to distribute and test on Fire TV devices. We're running into an issue where our beta builds install and run fine on all Fire TV and Fire TV Stick devices except the new 4K Fire TV. When our app is installed via the cloud it fails to install. If we use ADB to install the apk directly, the apk installs and a launches successfully, however we see the following dialog window within seconds of the app launching:
New Appstore version required
Amazon Appstore is out of date. Please visit the Amazon website to install the latest version of the Appstore.
What's going on here? What is this error asking us to do as the above cannot be done on a Fire TV device? The same APK installs, launches, and passes all of our functionality tests on all other Fire TV devices. Thanks in advance!