I am setting up a Distributed Collaboration between our internal ArcGIS Portal (10.6.1) and ArcGIS Online. We have want to share layers with external partners through a web app. The data is stored in our SDE database and will be continually updated. Everything is fine until I try to use layers with attachments - both layers with functionality for users to upload their own documents to a location and pre-created geotagged photo layers.
Has anyone found this? Does anyone know of alternative ways to share layers with attachments externally?