Okay, Here is something I have never seen before. I have a floor plan drawn in model space...all the walls are the same wall type and are clean and no warnings or anything...I Xref it into another drawing with other floor plans to draw sections from it and there are all these holes and warnings randomly in the walls. And even odder, I copied the same floor plan over say 200' for another section cut and the same thing happens but not in the same spots...just more random locations.
Any ideas?