We have created a ArcGIS Server 10.6 feature service. Under the server there is a postgres database. We have serveral relations that work very well in the database. All is set up to work with Collector app through Portal.
However. One of our relations dosent seem to work. As attachment shows, there is a 1:Many relation between the tables sensor locations and images of sensor locations. The image table has attachements enabled.
When a new record is created in Collector for ArcGIS, the UI in Collector tells me that everything went well, but when i look in the database, it dosent automatically create the parentguid (see attached image).
Any idea why this is happening?
It works if create the records through the same service but using a Web App Builder app instead..