Curves skipped while save as dwg

Rhino
1

Hello, I am Mino.
Curves skipped while save as dwg. I’ve tried most options at previous topics but still could not solve the problem. please check the attached file.
1.3dm (88.6 KB)
1.dwg (184.1 KB)

2

Hi Mino -

This seems to work fine in a current version of Rhino here.
You are running a very old cracked copy…
-wim