I know with mine, the first time I open it, the window stays black and the title is SDL_app and it won't run. I just force quit that one and open another and it runs fine. That may be what's happening to you.
No, that usually happens to me too. But then i just wait a while then it comes on...So idk what the problem is with his one.
It's probably something to do with corrupted files?...have you tried re-installing yet?