Using ArcGIS 10.6 and ArcGIS Server 10.6. I have changed the Alias of a Feature Class to ObjectID like
and it is showing in the attribute table like
(After Saving and even re-booting the MXD) but when I publish the map as Map Service the output still showing old alias (FID) in the Service REST end point!
Can you please let me know why this is happening and how I can fix this?