I have a problem selecting points in ArcGis - the selection feature seems to be misbehaving, not allowing me to select point features precisely.
I've imported the XY data of households as a csv file, transformed it into a shapefile and added a boundaries layer.
I am trying to precisely select points within the boundaries, but when I try to do so manually or when I "select by location", for some reason the selection tool is really misbehaving. When I try to select points, it always selects a whole bunch of random points around the ones I actually want, making it impossible to make precise selections of the points.
I uploaded a short video that illustrates this: https://youtu.be/juw0g7cZK3A
I tried to research online but can't seem to find an answer. I suspect it is perhaps related to the fact that the coordinate system is unknown after the CSV XY import, but adding a standard one has not improved things.
Can you perhaps explain what is going on? I am using ArcMap 10.3.1