Hello Kyle, thank you for reaching us to our forum. Please be aware that device targeting is determined by your app's manifest to indicate which devices your app can be supported on. If you have not selected this area, please try to set Manifest Targeting for your devices to be found.
For more information about manifest targeting, please see "What is Manifest Targeting? ": https://forums.developer.amazon.com/articles/190/what-is-manifest-targeting.html