After several days of fieldwork, our crew is happy with Survey123 ease of use. They nevertheless made a few mistakes, and some bulk correction is necessary. I loaded the feature service in ArcMap (10.4.1), but the service is not editable (see below).
I am logged in AGOL with the same credentials as used to design the survey, and am able to edit the data in AGOL... very puzzling!
Are all Survey123 feature service impossible to edit in ArcMap, and if not, what is triggering this behaviour? (ArcGIS Desktop version? Feature service structure/content?, other?)... help!! 
