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IDProjectCategoryView StatusLast Update
0015798MMW 5FileMonitor / Find Missingpublic2022-10-05 08:05
Reporterlowlander Assigned To 
Status closedResolutionreopened 
Product Version5.0 
Target Version5.0.4Fixed in Version5.0.4 
Summary0015798: Rebuild Database can result in loss of AutoPlaylist Criteria
DescriptionWhen using Rebuild Database AutoPlaylist Criteria like Artist and Genre loose their selected values (show nothing selected after rebuild).
TagsNo tags attached.
Fixed in build2668


related to 0017707 closedLudek Search: Disk/Track # can't be searched as String 



2019-06-27 11:17

developer   ~0053994

Fixed in 2184


2019-07-01 19:25

developer   ~0054053

Verified 2185

Values are persistent now.


2020-02-08 23:21

developer   ~0056588



2020-02-10 17:21

developer   ~0056598

Not a regression, but the same issue exists also for custom collections (not only for auto-playlists).


2020-02-10 20:50

developer   ~0056601

Fix for custom collections added in 2228


2020-03-01 03:39

developer   ~0056962

Verified 2229


2021-07-19 13:50

developer   ~0064254

The original fix from 2184 works for auto-playlists created in MM5, but fails for auto-playlists created in MM4!

1) create auto-playlist with criteria "album equals ..." in MM4
2) import this database to MM5
3) go to Manage database > [x] Rebuild database
=> the auto-playlist is empty after rebuild!


2021-07-19 14:19

developer   ~0064255

Last edited: 2021-07-19 14:26

Fixed in


2021-07-20 09:49

developer   ~0064262

Last edited: 2021-07-20 10:38

Re-opened: The issue still isn't fully fixed (as found by Barry).

It's timing issue (some cached data not cleared after DB rebuilt).

Fixed in 2426


2021-07-21 01:13

developer   ~0064267

Verified 2427

Left resolved til @barrym confirms.


2021-07-21 07:21

updater   ~0064270

Checked 2427. Seems to be fixed. Was intermittent before. Now unable to trigger.


2021-07-21 23:20

developer   ~0064271

Thank you Barry, Closing


2021-07-27 08:42

developer   ~0064298

Last edited: 2021-07-27 09:21

Re-opened: This issue still appears on German translation and specific user DB. More details in ticket # 2230

In addition German translation incorrectly translates "Rebuild database" as "Optimize database (full)" -- which was the older MM4 option, we should contact German translator to fix this.


2021-07-27 10:50

developer   ~0064303

Last edited: 2021-07-27 10:51

Fixed in

Test note: Was specific to combination of the user DB + German translation. User provided the DB via the ticket.


2021-07-28 17:58

developer   ~0064314

Last edited: 2021-07-28 18:53

Re-opened: There is still one issue when the translation is set to (non-english), e.g. German.
Auto-playlist that are defined as
Suche: [Musik] (Search: [Music])
results in
Suche: [Gesamtes Archiv] (Search: Entire library)
after DB rebuilt.

This seems related to #16564 where we introduced localized variants for collections.


2021-07-28 18:53

developer   ~0064315

Fixed in and merged to


2021-08-06 16:51

administrator   ~0064357

fyi, the 'Rebuild database' string has been translated in weblate, but a new set of strings hasn't been generated. We'll likely do that for 5.0.2.


2022-09-26 10:27

developer   ~0069529

Last edited: 2022-09-26 12:03

Re-opened, user from ticket # 4829 attached a database where DB rebuilt clears criteria like
Album equals [ .... ]
for certain auto-playlists. Strangely enough it is reproducible only with his database, investigating...

EDIT: The key to replicate seems creating auto-playlist including condition
'Disc # is unknown'
in MM4, then import such a DB to MM5 and rebuild DB.
=> it throws silent exception on DB rebuild, because it can't found 'is unknown' as choice for the 'Disc #' field.

This is regression introduced in 5.0.3 while fixing 0017707

=> Fixed in


2022-09-28 18:19

developer   ~0069551

Verified 2666

Test note: To replicate in 2665 MM4 database needs to be imported with specific auto playlist criteria.


2022-10-03 21:56

developer   ~0069629

Last edited: 2022-10-03 22:07

Re-opened: This issue still can happen in some scenarios.
e.g. when auto-playlist is created in MM4 on database that were already updated to MM5.DB (details and sample DB in Ticket # 4829)

=> Fixed in 2668


2022-10-05 08:05

developer   ~0069651

Verified 2668

Tested using sample DB.