I just posted a small update (1.12x) in the beta section of the game. The update fixes the sales/stream bug caused by songs created in the game editor. New songs created should now work. If you want to fix existing songs in the database, you need to select the database in the dropdown in the editor window.
Unfortunately, this update and any future updates won’t work with the FM DLC, because I lost the source code for the latest version of the game (1.17). As you can see, I’m starting from the version 1.12 and building back up from that.
You can access the beta by right clicking the game in your library and selecting properties.