I have located XML and log file for CivilConnection. Everything seems to be fine in the XML file for the selected featureline (stations, indexes etc). But as I was reading through log file I noticed only 1 error which said: “ERROR: Baseline.GetFeaturelinesFromXML Side Object reference not set to an instance of an object.” … So I thought that there is a problem with Side definition in Civil3D since I didn’t set Side parameter for my subassembly in the Subassembly Composer and Civil3D. So I went and fixed it. Then I restarted my script in Dynamo and the problem still remains (even the error in log file). Even though I define 2 stations, only 1 pier is drawn and node keeps saying that “the operation failed” and gives me null value for my second pier.
I wish I could send you .txt file but forum doesn’t let me.