I have a CSV file that I'd like to map using lat long coordinates. The file has a field containing four coordinate points (see image below), but the first two and second two are nearly identical, so I just take the first two and separate into different columns. Then I import into ArcMap and am able to map. The points don't display properly on the map even after I convert to the CRS they were originally in.
What else can I try here?

Also make sure the CRS of your Data Frame is defined to the same coordinate system before you import so it will line up with your basemap instead of Projection on the Fly.
– Smithw1 Nov 14 '19 at 21:41