MergeSrf changes shape

Rhino
1

Hi!
I have two surfaces that I want to merge to just one surface. On first sight they do not appear to be trimmed?
In any case, if I merge them with “MergeSrf” then the resulting surface has a different shape than the original surfaces had. How would I merge these surfaces into just one surface without changing the shape (and why does it happen with MergeSrf)?

grafik
grafik812×537 77.3 KB

grafik
grafik839×521 77.6 KB

merge_surfaces.3dm (48.4 KB)

2

Change Smooth to No

3

Thank you @603419608, that worked!