I recently upgraded from ACA 2013 to ACA 2015. I'm relatively indifferent to the display differences but have found that a lot of the modelling tools now tend to fail especially if the part of the building being worked on is not ortho to the WCS. I have a wing of a building that is set at a 45° angle to the main part of the house. Roof lines and floor lines fail more than they work. My go-to heavy hitter 'project to polyline' even tends to fail as often as not. Subtractive interferences do not work on door and window assembly frames (it just deletes the entire frame). Even simple body modifiers result in the triangle of doom. Anyone else experience similar issues? On an upside, it seems to fatal error less than 2013.
![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")
