Hi @krjtx – sorry for the slow response here.
We’re going to try and make this less opaque but it’s not a simple process, as there’s no list of missing files – it more like a list of missing references, which are tied to the audio content of each file. The point is that there’s more to this change than just exposing the list in the interface.
Also keep in mind that there’s a lot of ways files can show up as “missing” that are totally benign – things like copying a file from one location to another, as opposed to moving it. Because the file is temporarily in two places at once, Roon will end up tracking two instances of that file until you clean up. Same deal if you “unfavorited” content on TIDAL.