ModelCurve.ByCurve does only read Arcs but not Lines

Hello All,

I am trying to create model curves from all my lines and arcs, but i only get the arcs but no lines.
Does anyone know why this happens and how to fix this?

I am using Dynamo 2.0.3,Revit 2019.2.2 and Civil 3D 2020 Metric.

The problem lied with the distance from the Project Base Point.
To prevent this problem translate all geometry to the negative project base point.
You will need to place your project base point somewhere in the same region as the Civil 3D Drawing.