I've spent hours trying to create a loft with various types of guide curves--2D and 3D splines included. Nothing works; no loft is created. I get the message: "ACISERROR_SKIN_GUIDE_NOT_INTERSECT: The guide curve does not intersect all profiles". If I leave out the guide curve I get a nice straight loft. See Loft 25 in the attached drawing. There must be a simple answer to this and I am missing it. Perhaps it has to do with the points I have defined, but there are seven in all and none appear to be duplicated in any one spot. As part of trying to get this to work I would like to un-constrain the guide curve(s) to the sketch points, but can't do that. I am trying to constrain the guide curve(s) to the sketches using the Coincident Constraint. Should I do it some other way?