Could not bound plate with the specified boundaries. Ensure that all boundaries intersect the surface and are not coincident to the natural edge of the plate. (Molded Forms)
Meaning: The plate system boundaries do not form a closed surface or do not intersect the plate system’s definition surface. There may be gaps between boundary objects. You might also see this error when boundaries for an existing plate system are modified.
Recompute the plate system.
Verify that all of the boundaries of the plate system form a closed surface or intersect the plate system's definition surface. You might need to modify the existing boundaries or add new boundaries if there is not a closed surface.
Example: There are gaps between boundary objects at the arrow.
Verify that the plane inputs for the plate are valid.