"Cannot Find Or Open File" Message During Autosaves?

Does anyone else get the "Cannot find or open file" message when Sonar does an autosave in unnamed project? This didn't always happen to me, but began occurring with Sonar 8 or so, and has continued up to Sonar X2. Basically:

1. Open Sonar with Autosave enabled
2. Create a new project using the Normal template (keep this screen open)
3. Do not name the project
4. Uncheck the box for "Store Project Audio in it's own folder"
5. Click "Ok" to open the project
6. Wait around a few minutes until an autosave occurrs

Result: a Windows dialog box appears saying "Cannot find or open file"

Expected Result: I'll have a file called "Autosave (Untitled)" with the date in it, but no error message. 

This is a bit of a nuisance and I'd like to get it resolved. I've already contacted support but I'm hoping someone here might have a solution. If support gets back to me, I'll update too just so it's archived for future reference.