I’ve run into an issue with creating categorical maps in QGIS.
I’m creating a map of soil types of a 2500ha region. The shp file has the expected attribute table but was originally clipped from a much larger shp file. As soon as I go into properties and change the symbology to categorized (or anything other than single symbol) the layer vanishes. Which is to say I cannot view the layer in the mapping window, but it still appears in the layers panel, and only returns when I change it back to single symbol. I'm using 2.18.3
Has anyone else had this issue?