I've noticed this happen recently with an app I made in Web App Builder. In the screenshots here you'll see when I select these polygons, how generalized they are...even with a parcel that probably has 4 vertices! We published this service using ArcGIS Server, going to a server that has 10.6.1. I don't recall this ever being an issue with ArcGIS . Prior to publishing, I'm not seeing any options to configure a selection to generalize over a certain number of vertices (again, never had this issue until recently). Anyone else have this problem?