This problem began happening today.

The program crashes whenever I attempt to print a sheet. It allows me to save the sheet as a PDF but then the menu disappears and the view is completely greyed. I am not able to use any commands except to close the program. On exiting the program, I see the notice that the program quit unexpectedly. I am running it on a Mac. I have been using Draftsight for 11 months now and never had this problem.