If those lines are really the location of your polys then you've got polygons stacked inside of other polygons. It looks like the corner wall section with the curved crown is one group. Your corner minaret seems to be sitting on a rectangular block that's stuck down inside the corner wall section. It's possible that you did texture the walls and these are duplicate walls (spawned Props)occupying the same space. Can you just ungroup and delete these and still see another section underneath? The other possibility is the lines you are seeing are bare sections of a texture map. Either the texture you have wasn't painted over those surfaces or the object refers to a different texture map. If you are just applying brick or stucco images to those surfaces they may have gotten ungrouped. Select them individually and apply using the render materials in poser. If its a texture map, open it in a 2d paint program and look for an unpainted section with the red, blue, purple lines. Copy and paste the existing parts from one section and paste over the bare section.