Nucleus One: Unavailable Tracks in Playlists after Switching from MacBook Pro (ref#XFX1JF)

Support
1

Hi! What’s not quite right with Roon?

· Music won’t play or issues with my library

Music won’t play or issues with my library

· Local files won't import or appear

Tell us what's going on

· Title: New Nucleus One replaces old Macbook Pro; many playlists have available tracks marked unavailable.

This applies to playlists that contain ripped tracks stored on an NAS and also from Qobuz. Some, but not all, ripped tracks are marked unavailable, but only in playlists. (The unavailable tracks are available and playable from `Albums`.) I don't think it affects Qobuz tracks. If so, less noticeably.

---
If I go to my "uneasy shuffle" playlist, I see all the tracks on Sun Ra's "Space Is the Place" album marked with the red "unavailable" label. If I select a track and click "Play Now" nothing happens, and the tracks are skipped when shuffling.

This is true of a large number of the albums that were stored on the NAS. But not all. In the "vocal" playlist, the tracks from Bob Seger's "Against the Wind" are all there and playable, while all the tracks on "The Alligator Records 20th Anniversary Collection" are not.

All the tracks are available via Home->Albums (both those marked unavailable in the playlist and those not so marked)

During setup, there was some confusion about mount points. I believe that I was simultaneously using the root of the `Music` volume and Media.localized below the root. So what I suspect is that the playlists (in the database, I presume) are a mixture of entries from the correct mount point and the lower mount point. When I export an unavailable track, the `Path` value is blank. Working values have something like `/roon/sys/storage/smbmounts/RoonStorage_23137bdc4a89ef5c2aadb8827de10342e19aeb8b/Media.localized/ripped/Various Artists/The Alligator Records 20th Anniversary Collection, Disc 1/08 A.C. Reed - These Blues Is Killing Me.flac`

(Note the `Media.localized`.)

For what it's worth, the Nucleus is *way* slower than I expected, compared to a 10+ year old laptop. It's almost as if it's sometimes rebooting (or logging in somewhere?) when I start Roon on the client, switch to a playlist, or start a first track. I'll dig into it later, but mention it here in case it gives a clue.
---
Details on the setup (as remembered):

0. My previous roon server (an old MacBook Pro laptop) conked out, so I bought a Nucleus One.
1. Plugged it in and started.
2. I pointed it at the Synology NAS `Music` volume that holds my non-streamed tracks.
3. It scanned the directories and found the files.
4. The RoonBackup directory was saved on the NAS volume belonging to the MacBook Pro. I copied it over to the top level of the `Music` volume, and restored from there.
5. That appeared to work, but it spent some time updating "the database."
6. The Nucleus had forgotten the location of the library. I added it back – using, I think, `Media.localized` – and the indexing started again.

Note: I still have the original MacBook Pro backup available, though starting over from scratch would lose some changes I've (foolishly) made since.

I haven't looked into the files of either the original backup or the copy I used during installation. I haven't started backing up the Nucleus.

Tell us about your home network

· AT&T fiber connected to Amplifi Router HD. No funny settings on the router.
NAS and Nucleus connected via ethernet to the router.

2

Hello @Brian_Marick,

The reason your tracks are showing as “Unavailable” in playlists is a classic path mismatch. When you restored the backup, Roon brought over the “map” from your Mac, but since the Nucleus (Linux-based) sees the NAS via a different mount point, it thinks the files in your playlists are missing. Meanwhile, the tracks you see in Albums are “new” tracks found during the fresh scan.
To fix this without losing your playlists, you should perform a “Link” rather than a “Replace”.

Here is the cleanest way to do it:

1. Clean Restore from USB
Since the database currently has a mix of old and new mount points, it’s best to start fresh:

  • Copy your RoonBackups folder to a USB drive.
  • Plug the drive directly into the Nucleus One.
  • In Roon, go to Settings -> General and click Disconnect.
  • On the "Choose your Roon Server" screen, select Restore and point it to the backup on the USB drive.
2.Editing path(Crucial Step) Once restored, your library will likely look empty, and your NAS folders in Settings will be red/missing.
  • Go to Settings -> Storage.
  • DO NOT click "Add Folder" and DO NOT delete the old (red) paths.
  • Click the three dots (Edit) next to the old MacBook mount point.
  • Click Browse and navigate to the current location on your NAS. • Note: Try to match the folder depth as closely as possible (e.g., if it previously pointed to the root of Music, point it there again so it can find the Media.localized subfolder automatically).
  • Click Save.
By using Edit, you are telling Roon: "Everything you used to find at Path A is now at Path B." Roon will update the pointers, and your playlists will instantly link back to the files.

Let us know please if it improves your situation.

Thanks.

3

Hi @Brian_Marick,

Thank you again for your post.

Can you please elaborate a little bit on some of the performance issues you’ve encountered since migrating to the Nucleus One?

We’ve taken a close look at logs and see a consistent pattern of dropouts in mid/late-April (specifically on 4/22). The particular dropouts line up with a since-resolved upstream networking issue with the Qobuz API that was preventing playback of certain hi-res tracks in their catalog. This shouldn’t be occurring anymore, but you also mentioned that you’ve had other problems.

We’re very eager to pinpoint what’s slowing down this setup and help you resolve it. We’ll watch for your reply. Thank you!