Rhino 5 + Gh Loft + Draw display

Hi All,

I'm migrating from rh4 to rh5 and i'm running into a bit of an issue. I have the latest sp installed and the latest version of gh. I'm trying to loft a series of simple curves and rh / gh hangs up. When I have the gh display settings set to "Don't draw any preview geometry" the loft works fine, but when i go to preview the geometry rh / gh doesn't cooperate so well. I have the preview mesh setting set to low quality. Does anybody have any insight as to why this may be happening? The file worked perfectly in rh 4 with the same version of gh.

Thanks in advance.

[C]