Our lathe operator is trying to put a radius on the back shoulder of part using his grooving tool. We can't get the toolpath to walk the entire radius, it wants to start in the middle of the arc with any settings we try. Please see attached file and screenshots.
This seems to be a tolerance issue and we will make a note of this and notify development.
As a work around, you can modify the part region as shown in the attached file to program the entire radius.