Yesterday I read the thread about an issue with Rhino asking to save an empty file every time it launches. I’d noticed this happening recently - it was a minor annoyance.
Encouraged by some of the debugging suggestions in the thread, I decided to click on yes to save the untitled file, with the intention of trying to find out why it was asking to save. The expected save dialogue didn’t appear, but open instead. Being unable to save the file, I clicked on cancel. I didn’t realise at the time, but this overwrote my work file with the empty file and I lost a considerable amount of work (fortunately I had a backup but it was a couple of days old).
I thought perhaps I’d done something stupid (maybe I did) and have recreated the steps I took yesterday twice now using test files. On both occasions Rhino overwrites the file selected from the splash screen with an empty file if you say you want to save the untitled file.
This seems to be a pretty serious bug.