Players in a zone with no other players logged in forever trying to join a party

Issue: Players in my new highest level zone walk around forever looking for a party to make before eventually logging off
Crash (y/n): n
Platform (Windows/Mac/Linux): Windows
Version number: 0.18.25-gb1218f3
Description: Players will log in to my highest level zone where there are not many other players logged in, and will look around for a party for a while without ever fighting anything, and then go home and log out.