Ever since I started using DX, I have been unable to properly set up a module connection. Though I have all of my sandbox/production orgs properly connected, when I open up the connection list on the module set up, it will only show me any DX scratch orgs.
To reproduce, I open Project Structure, go to modules, edit Connections, and click the Connection dropdown on the appropriate module. Only DX scratch orgs show.
This is preventing me from retrieving any metadata information from my orgs.