Strange vertical offset on Curtain wall by Curves

Hi, I’m not sure if this is a bug, but I noticed that creating a curtain wall by curves such as the glazed partition and then setting the panel to curved offsets the panel 0.25" below the ground plane. Is this a strange bug? You can see the green line is not present in the right curved curtain wall.

Curved Panel problem.3dm (2.9 MB)

Hi James, this looks like a bug, indeed. I’ll report it to the development team and get back to you whenever there are news on this.