Steps to reproduce:

1. Open attached project
2. Switch to AppleTV
3. Build the project
4. Open the generated Xcode project
5. Archive the project and try to Upload it to App Store (to do this you will need an App ID set up to work with tvOS App Store distribution provisioning profile)
6. The game fails asset validation with an error:

ERROR ITMS-90718: "Invalid Image Asset. The App Store Icon must only contain an image with size (1280pt x 768pt @1x). Refer to https://developer.apple.com/tvos/human-interface-guidelines/icons-and-images/app-icon for more information"

Workaround: Delete 2x image assets from 'AppIcon - Large' in the generated Xcode project.

Reproduced with: 2017.2.0f3, 2017.3.0b10