I have deleted an album from my PC but it is still showing in the Sonos Library. If I try to play it, it says it cannot find it so how do I delete it from the Sonos library? There is a similar topic in the community but the solution says to disconnect the NAS. In my case, the Sonos controller is on the same PC as the music so I cannot disconnect the NAS. Why isn't there an option to delete in the drop down list when you right click?