Hello, this is the processing method for the CAD line of the waterjet which is a spline curve input ipp converted to a polyline and CAD crashes:

1. Re-open the CAD waterjet file, click on each spline curve separately, right-click and select Convert to Polyline; (Note: If the entire waterjet pattern is made using spline lines, after all the lines are converted to polylines, there is no need to process by entering the IPP shortcut key. Just enter the MY shortcut key to convert the waterjet pattern into a region directly.)