I am using QGIS 3.0.1. Everytime I drag in a shapefile (actually, *.shp, .shx and .dbf) I get three layers, that seem to differ just in symbology color. This happens with both shapefiles I get from outside sources and ones that I have generated in Python. My colleagues using ArcGIS see just a single layer when they do the same operation.
This isn't a problem other than adding what looks like redundant layers - or maybe I do not understand something kind of basic here.