From my messages log:
00:27:44: Error: can't open file 'graphics\Rooms\Room04 - TavEx\Objects\foganim.png' (error 2: the system cannot find the file specified.)
As said above, Visionaire crashed while I was doing a Save and Run. When I went restarted and loaded the .ved, I found everything blank. All my rooms, characters, options...everything was gone. I looked in my build folder and it found out it turned into a 0KB file. Thankfully, I had a fairly recent backup, but I did lose several hours of work.
This might have been just a one time fluke, but I thought I'd bring it to your intention just in case.