I have a windows computer and am using SketchUp Pro 2015. I have imported a DWG file however the drawing is not flat. There is a long line underneath the drawing which pushes up the elevation.
After removing the line, I have the drawing however it is floating. The lines are all jagged and not flat.
The snaps are also not working properly and do not match the drawings endpoints. After drawing a long line, the whole drawing disappears.
In the AutoCAD file, everything is on 0 elevation. What am I doing wrong???