I have an active on premise connection to both a SQL server and an an analysis services server, I can view these as active in the 'Manage Gateways' - they are all ticked green and connection successful.
When I create reports on both the cubes and the direct query tables (no imports) from the desktop app and deploy it online these again work fine and refresh.
However following the flow: Get Data --> [Import or Connect to Data] Databases --> SQL Server Analysis Services --> Connect
I get 'No resources found.' in the servers list.
I also have no idea where I access the on premise SQL server connection from within the web ui as everything visible is Azure.