Using the MCADTPC.dwg file, select the XNURBS_CUT-ZIGZAG_XZ Cycle.
Select Slice Settings to be sure the Slice Vertical Angle is set to -45.
Press the 'Cut' Button.
These settings should produce a tool path like this:
The only difference between this tool path and Vertical Finishing at Angle 0.0 is the setting for Slice Vertical Angle. Setting this to a value other than 0 produces slices on the specified angle.