Sorry, should have mentioned this in origional post. We are using Dynamic Views not Drawing Extractions.
Ustn since 1988SS4 - i7-3.45Ghz-16 Gb-250/1Tb/1Tb-Win8.1-64bEric D. MilbergerArchitect + Master Planner + BIMSenior Master Planner NASA - Marshall Space Flight CenterThe Milberger Architectural Group, llc
emilberger:This sould be valid for referencing BV or CV's also.
True. If you're clipping reference files I don't think you should be seeing any extraneous lines, whether it's an extraction or a DV.
However, if you're creating individual DVs (or extractions) and the cut plane is falling across elements at the extent of the DV/DEM area, then we will generate graphics to represent those objects being cut across. That's to be expected.