We have had som problems latley with Revit crashing when we try to export IFC. After a bit of troubleshooting it seems to be Enscape that is the problem. If we uninstall Enscape it works like it should with the IFC Export. It seems to appear randomly and not all computers are effected. When the problem appears Revit just quits, without any warning, when the user clicks on export IFC. The dialog for Export IFC don't show up. We disabled all the addinns and then the Export IFC worked. We enabled all the addins again and now we get to the dialog for Export IFC, but it crashed whe we tyied to run the export. If disable just the .addin-file for Enscape it works and if we unistall Enscape it works. Somtimes it works to export IFC if we reinstall Enscape, but not everytime. When the crashes happens we can see an Application Error in the Windows Event Viewer. It seems to be an error between Revit.exe and clr.dll (Microsoft.Net?)
Anyone who had the same problem?