Open the attached ORG30072-P1.ogwu.
Plot first 3 columns as 3D surface.
Open PD and go to Contouring Info tab, set Col(D) and col(E) as custom boundary.
Click OK
==> The surface has been clipped by boundary, but the original axis scale kept; and the color fill level don’t change too, Even clicking Find Min&Max in Set Levels dialog, Form and To won’t change.
Fixed in Origin2026.