When a streaming service does not show in a Tree view of rekordbox

For example, if SoundCloud is not showing in a tree view,

open Preferences > View > Layout, and confirm if SoundCloud is checked.

 

If it still doesn't show, maybe you are opening the vertical sub browser surrounded by blue line and if it's stretched all the way to the left, it will hide the original Tree view on the left surrounded by green line.

Please close the sub browser and see if the SoundCloud shows.