Broken Surface

Rhino Rhino for Windows
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1

A few simple commands results in a broken surface.
MoveEdge Bug.3dm (105.7 KB)

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image2073×1011 436 KB

2

What are the steps to repeat in the MoveEdge command?

3

MoveEdge, select the bottom four edges (or either set of two opposite bottom edges), move 12 units in positive Y direction.

4

Got it, thanks for reporting RH-87106/