Rstudio started behaving oddly, for instance not executing source as I Ctrl+Entered it. So I closed it, got a strange message about not being able to connect two browsers simultaneously, and restarted it.
My source .Rmd file is empty. A check of explorer confirms my fears: 0 B size.
Not a happy camper here. There's no .html file that I might be able to recover my program from either.
Is there anything else I could look at before I curse loudly and angrily?