Hello, I am a new user of Archicad, coming from Revit and really enjoy it so far. However, I am having a problem with the Trace feature. In learning to use the program I created a simple box for the first floor walls. I click on the second floor, use the Trace tool so the greyed out first floor image appears and proceed to make second floor walls by snapping to the corners of the reference image. Then I look at the 3D image and they are 3ft off. Frustrating, so instead, the second time around instead of snapping to the first floor reference, I use "zero coordinate" location instead (thats where I drew the first floor as well). In the 3d model they now line up, but in 2D floor plan, they dont. If I have to use the zero coordinate, whats the point of the Trace tool? It could be something very simple I am missing. I have attached 3 images. The 2D floor plan is drawn at zero instead of tracing, this correlates with the correct, aligned 3d image. The 3D image that clearly has 2 boxes not aligned are when I trace the reference exactly correct with snaps.