Blendsrf command seems to not work as well as Rhino 6's

Rhino
1

It seems to be flipping the surface over itself. I’m trying to follow a tutorial on YouTube but stuck on this step:

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There’s no option to flip the surfaces like in Rhino 6

Note that unlike this tutorial (view from about the 16 minute mark), I cannot adjust the seams:

2

I found out the problem: Due to how I made my handle, the openings on the cup aren’t continuous/oblong… which makes it impossible to blend the surface. I just needed to re-build the handle.