So I have drawn in about 30 3D sketch lines in my model under the one sketch, all at different angles and I am trying to do a sweep extrude on each one. When I selected the path for my very first sweep I simply clicked on the 3D sketch and it did a sweep extrude along it fine. Yet when I try and replicate it on the next one, the sweep profile will only allow me to select the entire sketch, all 30 lines, then gives me the error 'Cannot create a profile for the sweep path'.

I'd like to simply select one line from the sketch as the path, not all of them.