Our game failed App Functionality Testing process for 20/20 devices, we have tested manually on Fire HD 10(7th Gen) & Fire HD 8(8th Gen), and game is functioning properly. Also, we have tested on Amazon App Testing Tool but resulted in 'Unable to test the app'. The exact problem is not mentioned clearly. will you please guide with some more information to get the solution! Any information would be appreciated.
Thanks in advance.