Urban Plannig via Dynamo (BiMorph Curves from CAD Layers)

I believe this may in fact be the issue with the Z translations.

Will try to figure it out…

I don’t think it is a Revit 2019 specific issue. The topo is just a random toposurface with some negative and some positive height values. Surely it’s the same in 2017, 2018, etc.

this is how i came upon the issue.

Thank you for your help!