I've installed AutoCAD Architecture 2012 the day I received it to start testing, so I've been using it for a couple of days now...
Today I noticed a drawing of a facade I was working on somehow got corrupted. This happens very rarely. Besides the corruptedness I couldn't recover the drawing. That actually never happened to me before...
The .bak file I could still rename and open.
Later on I noticed more of the facade drawings for this project were getting corrupted. So it spread from only the drawing for the preliminary design phase to the drawing for the existing situation... For this drawing the .bak file also got corrupted.
The weird thing is I can't open the drawings in AutoCAD Architecture 2012 at the moment, but I can open all of them without any trouble in AutoCAD Architecture 2010. I tried purging the drawing in 2010, to reopen it in 2012. Made no difference.
Is this bug known (if it's a bug)? Has anybody else come across something like this?
![Autodesk Design & Make Report](https://forums.autodesk.com/t5/image/serverpage/image-id/1350519iCB55845EBFC43016/image-size/large?v=v2&px=999" "Autodesk Design & Make Report")
