@Rhino_Bulgaria I think there is some incompatibility between Rhino 7 and 8 that causes the curves to disappear, the attached two should fix the issue:
Bobi X12 adjusted.ini (13.8 KB)
Bobi X14 adjusted.ini (15.4 KB)
ps this does not fix the shading issue with FilletSrf as this is an independent issue and happens in any display mode.