I am running a windows 7, core I7 laptop. When inserting a new polyline model it allows me to create one, then as soon as I begin creating a second model I get a crash report and the program locks completely. I am then unable to start the program again. I must install version 41 again.
I must then remove the references to Polyline models to run again.
I am able to then reinstall version 42 again but the error is repeatable.