CivilConnection - get feature lines from corridor

I am trying to get the corridor feature lines via the CivilConnection package.
I can get the codes but the GetFeaturlines node results in empty lists. It seems as if it reads the featureline codes but is not able to produce the actual feature line.
Any suggestions?

Sorry for posting a bit prematurely.
I updated Civil 3D to 2020.4, Revit to 2020.2 and Dynamo to 2.3 - that did the trick :slight_smile: