If you can attach the file I can try.
Just looking at the picture... There are no "Guide Curves" and the Loft Sketches don't have the same amount of points or line breaks, but it's hard to see. Like Maha Nadarasa mentions upload your part
I think user influence is necessary in this region, spontaneous action of the software is not acceptable – guide curve is an option.
You can further refine if you want.
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