You mentioned “point” sweep and “range” sweep”, and I provided solutions. Not only I tested the “range” sweep and “point” sweep, I also tested script loop one wavelength at a time by setting the wavelength “start” and “stop” the same. No any discrepancy among the 3 methods is found. If you found difference, please upgrad to the newest version 2022R2.2.
Please use the sweep utility.
If you have other questions please write a new post, please.