Hello! Im quite new in rhino, and idk, maybe there is some kind of option for display mesh precision? I have this brep, and it is not shown as it should, but the edges are correct.
Hello - you can adjust the display mesh settings (DocumentProperties > Mesh page), or try DivideAlongCreases > SplitAtTangents = Yes to see if that cleans it up - otherwise please export that object to a new file and post it here or send to tech@mcneel.com with a link back to this topic in your comments.