I am doing clash detection for a project and we are constantly getting updated model files in the form of DWGs. We are having an issue with one file in particular that had been working till about Revision 8. Then it started making Navisworks hang at 7% for a very long time and still never opens. It still opens fine in CAD but runs into issues when imported into navisworks. (See attached image showing how navisworks just hangs at 7%)
I've run "audit" in CAD to try and fix any error, however none were found. I have also tried copying the drawing into a new fresh cad file. This did not work either.
There is nothing that I would see that would indicate any issues with this file.
Please let me know if I should attach the DWG file.