No i am not giving up hope - we are using it extensively, and now all our work has come to a halt
Faulting application name: Survey123ConnectforArcGIS.exe, version: 2.7.72.0, time stamp: 0x5a9f08dc
Faulting module name: AppStudio-WindowsLocation7.dll, version: 0.0.0.0, time stamp: 0x5a052613
Exception code: 0xc0000005
Fault offset: 0x000017d3
Faulting process id: 0x1040
Faulting application start time: 0x01d3cf8ab0193ada
Faulting application path: C:\Program Files (x86)\ArcGIS\Survey123\Survey123ConnectforArcGIS.exe
Faulting module path: C:\Program Files (x86)\ArcGIS\Survey123\position\AppStudio-WindowsLocation7.dll
Report Id: 008034ba-3b7e-11e8-a152-6c0b84a977d8
I have deleted AppStudio-WindowsLocation7.dll, and now it is working fine