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MC25.0.75+: Lost tracks or complete albums since sync. MicroSD
m@Xist:
Welcome everybody!
Recently, I purchased the AK KANN DAP, which I would like to synchronize with my MC library. However, there occur the following problems:
First, the KANN is not recognized by MC25. PPL in the forum seemed to have the same problem, but some said that the newer versions of MC should have solved this issue of non recognized devices, especially such based on Android. As a workaround I insert the MicroSD card straight into the Mac and have it synced with MC that way. At least it works, but …
Second, since syncing MC with the MicroSD card, there occur strange phenomenons with MC as follows:
- It can happen that after syncing the MicroSD card, when switching to "Recent Imports", I see albums that were added in the past are in a sudden showing up as recent, thus that means that there have been some changes on those albums!
- I see in fact some changes for some albums, such as:
- missing tracks. For example an album has a total of 13 tracks, but track 6 is not shown. However, I can still find it under the pyhsical folder!
- Some albums have twice the same track!
- Some albums are not missing any tracks and I don't see what were the changes made by MC!
- Some albums are gone completely (still present at the physical location though). What is odd here is that the album is still appearing in my playlist called "TestKANN" that is dedicated to my AK KANN DAP. See attached screenshots.
My setup:
- iTunes on the MacBook Pro is the master; I import M4A into it and use it to tag music.
- MC on the same host is set up to sync to the iTunes Music folder and trigger resync on changes.
- I use another MC instance on another Mac that connects to the main lib for playback.
ADDENDUM: For testing purpose I manually deleted single tracks from an album (yet keeping the source). When running Auto-Import again and again (or via iTunes XML import), it would sync and re-add the missing tracks after a while, except for those that disappeared as described above.
Only after I manually rename the individual track in iTunes, it would resync it in MC!
Thanks for your support!
Dan
blgentry:
It's not clear to me what's going on here.
The missing tracks: Are they on the AK device or in the main JRiver library?
Are the tracks missing on all three systems? If not, which systems have the tracks and which do not?
Brian.
m@Xist:
--- Quote from: blgentry on August 27, 2019, 07:53:57 am ---It's not clear to me what's going on here.
The missing tracks: Are they on the AK device or in the main JRiver library?
Are the tracks missing on all three systems? If not, which systems have the tracks and which do not?
Brian.
--- End quote ---
Hi Brian
The AK KANN can be excluded from this discussion, as the issues do only occur on the MC lib. The other Mac is just connecting to the main lib and thus shows the same issues (as it points to the main lib).
But to answer the question and to be more precise ...
Example 1: ALBUM A was originally found in the MC lib. I sent this album to the dedicated playlist named "TestKANN", which I use to synchronize the MicroSD card with. After synchronizing the MicroSD card and insert it into the AK KANN, ALBUM A was found on the AK KANN, the album was gone from the MC lib.
Example 2: After synchronizing the MicroSD card, ALBUM B suffers missing tracks in the MC lib, and ALBUM B was NOT part of the TestKANN playlist, because it was not supposed to be synchronized.
blgentry:
I recommend restoring a library backup that was made before you synced the SD card. This should bring your albums and tracks back.
This is very unexpected though. I've done quite a few syncs (at least a few dozen) and have never had any tracks or albums go missing.
With devices like the AK that are not easily detected by MC, I do a hybrid sync though: I create a folder on local disk to sync to. Just a simple folder on the internal hard drive of the Mac. When the sync is done, I just copy it's contents to the portable device, or SD card.
I can't really offer any ideas of why your sync is seemingly making tracks disappear. As I said that's very much not expected behavior.
Brian.
m@Xist:
--- Quote from: blgentry on August 27, 2019, 10:18:13 am ---I recommend restoring a library backup that was made before you synced the SD card. This should bring your albums and tracks back.
This is very unexpected though. I've done quite a few syncs (at least a few dozen) and have never had any tracks or albums go missing.
With devices like the AK that are not easily detected by MC, I do a hybrid sync though: I create a folder on local disk to sync to. Just a simple folder on the internal hard drive of the Mac. When the sync is done, I just copy it's contents to the portable device, or SD card.
I can't really offer any ideas of why your sync is seemingly making tracks disappear. As I said that's very much not expected behavior.
Brian.
--- End quote ---
Well, I understand that it is difficult to nail down the root cause. However, would it be possible to identify why MC is no longer synchronizing the missing tracks? If there was sort of a "brute" import it should recognize that there are tracks found at the root folder that are missing the MC lib and should add them. Or in other words, why does MC recognize and import a missing track only after I e.g. renamed it in iTunes? That tells me there is an old ID on that file that is not being updated. Only on physical file changes the ID becomes updated, or sorts of ...
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