Convert Surface Sweep to Sheet Metal

Good morning! I have this part that I'm trying to convert to sheet metal, a rolled open profile that will likely be formed on a rod in a press brake with a suitable special bottom die. I can get the surface created but not any swept profiles that will flatten. The thickness is .049 if that helps and I would use a K factor of .5

I'm guessing that to SW it appears that the parts rolls upon itself during forming. Thanks for any help or suggestions! A 2012 version file is attached.

SolidworksSheet Metal