What platform are you playing on (Window/Android/Mac)?
Could you try pressing Enter (or whatever the accept button is on the device)?
I'm on android and I don't see any enter or accept button, all I see is black.
I think I've seen this before when testing on the virtual Android. I was able to resolve by waiting a bit more and tap on the screen. It may take more time to load the game at start. I can test again to make sure things are working in Android.
