Import curve.Project to Revit


I project an Arc on a topo surface and I want to import the curve back to Revit.
I tried ModelCurve.ByCurve, but it will become multiple circles.

I also tried ImportInstance.ByGeometries and clockwork DetailLine.FormCurve, but nothing show up on Revit.

Any suggestions or ideas?


Hello Erica, could you upload the Revit and Dynamo files?