Ah, very interesting! I would expect jAlbum to complain about that garbage file, like with an error message in the system console, or to ignore it completely. But getting a completely black screen is a surprise.
Something to file away in long-term memory, for future debugging. Thanks for sticking with it.
To resolve this mystery, you'd have to reproduce it again (add that link to that garbage project) to recent-projects.txt, then run jAlbum via StartJAlbum-debug.cmd and see if any errors are being printed to the console window that opens.