"SurfaceId" issue in "PrepareEnergyModel"

Hi everyone, I try to set mass surfaces parameters but “SetWallSurface” in Energy Analysis package doesen’t work and I don’t understand why. What’s wrong in my flow?? Thanks

I´m having the same problem.

There is any changes in the revit API that doesn´t unable the node?

Revit 2018.3 - Dynamo 1.3.3
Energy analysis for dynamo package