the left over is gone , so no more "pergolas"
i see that 3d faces are not being imported at all. As you could see in the picture form my erlier post , there is a layer called BF witch is a 3d model from Blender imported into DraftSight, and finally exported as a 3d-dxf. in SU doesn't come that particular object. It is a truncated piramyd, and not a single line appears in SU, neither Layer0, nor any other layer. The layer (the name of it) appears in the layer's list, but no geometry exists. (as seen in the pictures from previous post)
No, do not eliminate Layer0. I'm not saying this. I only say that when Layer0 is turned off( say i want that for seeing just for seeing what i have imported from dxf file), everything dissapears, so by turning off Layer0, my scene desissapears and so the imported geometry from dxf, even though the the geometry from dxf is actually marked as visible.
It is a very strange behaviour, i don't get why you don't understand it. Look carefully at the 2 pictures comparing the situations, into my previous post.