https://forums.autodesk.com/t5/navisworks-forum/manage-clash-detection-results-tab-column-sorting-issue/m-p/5747706#M19040 <P>Thank you guys for giving me a few different suggestions. I'd like to follow up and let you all know that nothing worked and we had to rebuild the Navis model.&nbsp;We reached out to many different resources, one of them being AD, but no solutions were found.</P><P>But I do have a suspicious feeling that it has something to do with the 3d CAD model and the fact that elements of this model are being deleted and replaced with new, thus creating a brand new clash each time and multiplying same unresolved clashes.</P> Wed, 29 Jul 2015 14:57:44 GMT SylviaQB 2015-07-29T14:57:44Z