We have ArcGIS Enterprise 10.6.1 installed on a single machine. Workgroup edition of server.
I published a map service from ArcMap 10.6.1 that had related features from an SQL database.
When I add the service to a new ArcMap project all the related data gets pulled when I identify.
When I add the service to an ArcGIS Pro project or to a Portal map I am unable to view the related SQL data.
The SQL database and connection has been registered in the datastore.