I am using the public notification widget in the non-developer edition Web AppBuilder with my tax parcel polygon feature service layer. I have it setup to use the select tool to click on a parcel, then you can enable the check box to apply a 500 ft buffer. The problem I am having, is when I click on a parcel using the Select tool, it will often select the parcel I clicked on, but it will also select one or more adjacent parcels as well (even though I only clicked once inside the subject parcel). So when I apply the 500 foot buffer for the public notification, it goes off the outside edge of all the adjacent parcels, not the subject parcel I clicked on. I have tried checking and un-checking every possible option in the Public Notification Widget setup and nothing seems to fix this behavior.
The puzzling part, is sometimes I click on a parcel, and just selects the parcel like it should, other times it included one, two, three, or all adjacent parcels in the selection. So it seems somewhat random.
Has anyone else noticed this behavior or have a work-around?
Screenshot attached - I hit default "Select button" (annotation 1), then click once inside a parcel (annotation 2), and the result is it selected 4 of the 5 adjacent parcels in addition to the subject parcel.
Thanks for your help.