I am struggeling again and again inserting geometry into a family created in GH inside Revit with the add form component. Direct shape kind of works but seems to mesh some parts and does not give the flexibility in Revit. A simliar definiton worked in march without problems.
The geometry is rather simple and works as workaround baked to rhino and then referenced back to GH and imported with add form. There are no edges of short curves or arcs, I tried to set the tolerances lower (0.001mm) but no success.
This is how it looks directly from GH:
This is the baked brep referenced back to GH: