It looks that this filter in the meantime is working quite well, it just takes a lot of time until Roon recognizes the “changes”. In generally the synchronization is very slow between Roon and Qobuz an this is not an issue with my my internet.
Do you mean something like this, @Aquarius_M_Taurus? If so, I can report that this unfortunately doesn’t work at all for Tidal tracks. I get a listing of a couple of albums, but all of the songs I’ve tried are still playable here. 
You are right I do it the same way, just for Qobuz tracks. Shows albums sometimes but not everytime an album is missing.
Actually just 1 album is missing out of approx. 4,300 albums.
The pitty is that Roon does not show it but still Qobuz, so much fun to figure out which if nothing is shown with the above filter.
Doesn’t work every time in Qobuz, the filter thing indeed…
Let’s hope again with the new owner, ‘‘centered on old requests’’
Still not sure you catch them all… But the new feature (add tracks to Qobuz playlist) does correct the tracks and uses the new version in Qobuz - excellent
+1
Bumping this old thread. Only yesterday was I made aware of the existence of the library clean up. The requested feature here is something I sorely miss in Roon: a list of all tracks in my library that have become unavailable. Apparently, Roon proposes to delete nearly 1% of my library tracks!
Given the high number of votes (it’s around the #30 spot or so of all feature requests) and the seemingly low effort to develop this (Roon must have already compiled this exact list in the background or it could not give us the number of tracks nor execute the clean-up action), I would definitely categorize this as “low-hanging fruit”, Roon team! 
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Totally agree! It is a total black box now and not inviting to clean the database. Lost a lot of albums this way only to discover when I wanted to play them from my library…
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Another big up for this feature. As an example, My clean up deleted files is showing 1410 files. I regularly clean files up here and the number here generally matches files I’ve changed or deleted in my library. In this case, I have only local files on my Roon Nucleus. I have not deleted 1410 files since I last ran this two weeks ago. I have no idea what these files that are missing are. As they are on my Roon Nucleus internal drive, I am very concerned that something is happening to that drive. Did those files get corrupted, did the drive have faults? Was there a mistaken deletion?
I regularly run backups from the internal drive to an online backup. I have it set to mirror the main drive. So that means if those files are missing, the backup will also have them missing after it mirrors. And I have to go back to a deeper backup to find those missing files. But eventually all my backups will have the missing these files because I don’t know they are missing. Do you see the issue?
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Come on Roon users! Vote for this feature! Library cleanup shows another 21 items to delete. If it’s not available on Tidal anymore, maybe I want to buy it. But now I know nothing! Small add-on for the developers since it is already known what’s missing…
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Well I’m not sure about the library clean but the new version is just awesome
Now we can find all the files that have a new version with a better resolution and also track down all the ones where the authorization rights changed and check if there’s anything worth in Qobuz or Tidal
Thanks to the new playlist improver feature
This would be real handy. Voted!
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Ok, so from this thread
I learned how to fix tracks from streaming services that have become unavailable.
Now that I have completed the exercise of replacing all unavailable tracks in my library, I found that the tracks that library maintenance proposes to remove here…
…are unrelated to these unavailable tracks on streaming services. Because the number did not drop after I replaced them all (and yes, I restarted the server to be sure). This is NOT what I expected.
Which leads me to think that performing this cleanup, which I have never dared to do, may be more harmless than I thought: perhaps these are simply entries in Roon’s database which are not actually listed in your library anymore. Any thoughts?
Sounds weird indeed. Thanks for sharing the missing tracks feature (also wasn’t aware of it). Gives a little more grip on what’s happening 
Could it be that in the library cleanup, it is only a counter that is being upped everytime a track became unavailable? And is never recalculated on a rescan (which makes sense of Roon discard the contents after upping the counter) and therefore is unaffected when adding the files back? 
Unsure, but I just removed 224 items via the cleanup button and the few unavailable tracks that I left in my library for testing this remained in my library. It certainly appears that this cleanup is truly a background thing so not very worthy of this feature suggestion. I am repurposing my vote elsewhere.
@Teun_Romme
If that were actually how the feature works, wouldn’t Roon just state that explicitly? The fact that they don’t document it, don’t confirm it, and don’t clarify the behaviour anywhere is exactly why this feature request exists. Right now we’re all guessing based on anecdotal behaviour, and that’s not really how a core library‑management function should work.
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I just found this feature on Roon. I have just under 40,000 deleted files. Has anyone figured out if it’s ok to just clean these up? Hard to believe Roon hasn’t said anything about this after 7 years.
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I recently inadvertently deleted an album. And I don’t know which one. Trash was emptied prior to realising I had deleted the album
I’ve moved your post into the existing Feature Suggestion thread.
If this feature suggestion is important to you, please vote for it by using the Vote button at the top of the thread. Thank you.
I haven’t really spent much time with Roon lately, today I was clicking around looking for new options, and I discover there’s 2556 deleted files to clean! This is really disconcerting. I certainly haven’t deleted 2556 files, so where did they go? Is it from bit rot, file system errors? If I knew, a) I’d feel better, and b) I could investigate what happened. Roon, please add the option to list these files.
