TUFLOW Message 2331
CHECK 2331 - No Zpts found within clip region.
Clip regions can be specified as a second argument in the command Read Grid Zpts (and also Read TIN Zpts) by reading in a GIS layer containing one or more polygons to clip the area of Zpts to be inspected. This message indicates that there is no Zpts found within the clip region.
Check if the location of the clip region is as intended.