I have a weird problem. I have a feature class generated from processing multiple rasters and converted by Raster to polygon tool in ArcGIS 10.4.
I would like to apply
Unique value symbology based on field
gridcode in ArcMap.
gridcode values (from 0 to 14) exist in the field gridcode in Attribute table, I can also
Label them, as here:
However, when I want to apply
Unique value symbology, only the value "1" gets load after "Add all values".
Do you know why the other values do not get loaded?