I have opened the xdk debbuger by first time and I have found here 2 critical issues. But it looks to be normal, at least on my apps, because I have tried to debbuged another app that works fine and show shame results on console.
These are the errors:
Uncaught (in promise) DOMException: A call to lockOrientation() or unlockOrientation() canceled this call.
Uncaught (in promise) DOMException: The page needs to be fullscreen in order to call lockOrientation().
I have checked the "full screen" on "build settings" on Xdk, so I don´t undertand why this error appear and I get no other clue about black screen.