I'm starting on C4D, having briefly attempted to some years ago. i'm having trouble with a loft I'm am trying to create from a splines. I have a closed spline on the ground plane and have copied it and moved up the y axis above the original spline. When I create a loft from the 2 spline I lose part go the original, intended geometry. I tried to achieve extruding the spline but I need to be able to modify both splines after I have created the loft. Any help with this issue would be greatly appreciated.