Something went wrong with a new drawing (one I hadn’t saved) and resulted in OmniGraffle hanging (spinning beachball). All I can do is Force Quit but when I reopen OmniGraffle, it finds the faulty draft and reopens it. But then it hits whatever problem it had and hangs again! So I effectively can’t open OmniGraffle unless I can stop it from committing suicide by opening the faulty draft.
I was hoping the draft was stored in a file location somewhere and if I can delete that, I can get OmniGraffle back.