I created several feature classes and saved them to a map document in ArcMap 10.6. I created a service using that map in ArcGIS Online. A GlobalID field has appeared. I have checked within the feature service and the web map and the GlobalID field is checked off but I still see in the list of fields. I believe it is keeping me from making certain edits and analysis. Can anyone tell me how to truly turn this field off or delete it within ArcGISOnline?