Try to send a report to Autodesk about this. There is a form that appears on the screen about the crash, with instructions. They will request the log file, and hopefully they can figure out what is causing the problem.
Here in the forum, it's not possible to give you more advice about this with the information that you provide.
Alfredo Medina _________________________________________________________________ ______
Licensed Architect (Florida) | Freelance Instructor | Profile on Linkedin