I have a big script (>10MB), made for a client. Somewhere i flatten 3D BReps to 2D outlines for fabrication purposes. I do this using a Py3 component with just a simple UnrollSrf command. It worked for years but now suddenly, out of nowhere, i get different results.
Weirdly, it worked like normal in the morning. Even more weird, even before updating Rhino the change happened. Now i get this in any version of the script i made recently. I hadn’t changed anything, except looking around in some clusters for some unrelated bug. I’m on a Mac but i now get the same results on Windows. It is as if the UnrollSrf function suddenly changed.
While writing this i noticed something, which is that the unrolled BRep came out as one flat joined Brep, instead of several sub surfaces, which i realized is what the script expected. So actually, adding a Brep Deconstruct seems to have solved the problem 
I am relieved.
However, i came this far so i’m posting anyway. Maybe someone from McNeel can confirm there has been an interation in this function. Also so i can sleep soundly knowing this will not happen again soon/suddenly. The stakes are pretty high, tbh.
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