Why is the Lat Long Not Populating?

The Lat/Long values are calculated by ESdat using the values from the x and y coordinate system. For the automatic calculation to work, you will need to set the coordinate system in the Site’s detail page: 

A screenshot of a web page

AI-generated content may be incorrect. 
Otherwise, if the locations have been uploaded before the coordinate system has been set in the Site, you can re-calculate the Lat/Long by clicking the calculator button beside the Coordinate System drop down. 

A screenshot of a web page

AI-generated content may be incorrect.