Point At Parameter at Surface

hi all ,
Generated point form the node is out of the surface, i want all point on the surface to be able to panel it

the surface is create in revit & cutted by in place void
Thank you.

Parameters do not respect the extents of trimmed surfaces. Look into alternative methods around isocurves and parameter intersections. If you provide a sample geometry (say an RVT with just the elements in question) I can review options.

thanks jacob,
here is .rvt file