Posting a nest with a sheet cut-off threw because the CI Fiber writer treated every contour as a compensated part contour and requires a linear lead-in after G41/G42 (TF5200 13.2.4.1). Cut-offs are open centreline cuts with no lead-in and no inside/outside, so they now post without G41/G42 and run after every part on the sheet so the sheet is not severed before the parts are cut (matching the CL post). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>