Custom U-turn issues

This is my second year using Ag open gps. I’ve just upgraded to v4.1. Ive just started sowing the first paddock of the year and it’s doing a pretty good job of following the line. I’m just having a bit of trouble with the U turn. I used the custom uturn last year but this time when I try to make one I get the error “an unhandled exception has occurred in your application” does anyone know why I’m getting this?

You might have found a bug. Try again after having deleted the AgOpenGPS folder and see if it still does it. If so please post in the bugs section.