Dear @Antoine,
With respect, Mark makes the point that all modifications operated by Audirvana/MusicBrainz before the toggle is reversed in āmetadata Recoveryā are irreversible modifications, and he is undeniably right.
All of us had to rebuild from scratch a new database based on a non edited backup of our music files. As for those of us who did not have a non edited backup, well ā¦
You are talking about something that happened a long time ago. By default AudirvÄna Studio do not have the āSave recovered track IDā¦ā enabled anymore. Mark created his account ten days ago so he didnāt had this toggle enabled, unless he enabled it accidentally.
But AudirvÄna Studio still do an analysis of your tracks and will still display and ONLY display information from Musicbrainz since the tracks have the Musicbrainz id linked to it but only in the database.
If you remove the option to display those information and remove/add your synced folders, those information should not be displayed.
I have made changes outside of Audirvana, with Tag editor Pro, I have took out the extra wrong infos like Album: Soul, Album Artist: Music, I have saved them all, and Audirvana put back wrong shits. Sorry guys, but that is so annoying and I think now you turn! Now, You know all the bug infos to should fix.
When i trash my database this Christmas to start again because of a bug, i start new deleting prefs and database .sqlite
When i reopen Studio it ask for my music folder, i added then looking at artist cover i then see the messed artist added like with musicbrainā¦ i recheck prefs and the first musicbrain prefs was still on
Seems it is on by default for new user, so now i never add music when ask, i stop the setup and go the the preferences and make that prefs off. Quit studio then reopen just to be sure it is still off, then i had my music 
@Mark Maybe it is still on for you now?
Can you check the other tabs like Additional, More Additional or Custom Tags to see if you donāt have something related to Musicbrainz in it?
are they empty not filledā¦
Ok, can you please replace the database you have in your dropbox and replace it with a copy of the one you are using? Also, can you put the track Promise in it me so I can check it on my side?
updated, but here is the link again
I opened your files with Yate and I can see this, no album metadata in it :
And I can see in AudirvÄna Studio database that you still have musicbrainz id in it (which probably why you still have this issue) so here is what you will have to do:
Back-up your Playlists and Favorites by going in the Local section of AudirvÄna Studio.
Then remove the AudirvanaDatabase.sqlite file
To go to it with the Finder:
After doing this, reopen AudirvÄna Studio and check that you have those settings in the local section disabled:
If itās the case then add your folder again to be synced with AudirvÄna Studio. Please check if you still have your issue with those files before restoring your favorites in the local section
Oh Boy, Antonie, that obviously you can not see now nothing extra 
because I have already changed that! So do you think am an idiot, right? This is an issue of Audirvana! You need to find that and fix it!
Mark,
A long time ago there was an issue with Audirvana Studio changing metadata in files.
I know for a fact that this is fixed a long time ago. There has been a long long long discussion about this on this forum.
Now I am sure that this is fixed. I have tested this over and over again, because it happened to me in tha past also and I was one of the forum members in the discussion. You can ask all the forum members and they will all tell you that Audirvana does not change the metadata in your music files when you have the toggle OFF anymore.
So there is nothing to be fixed in Audirvana. Please listen to Antoine and try to do what he is suggesting (also what he suggests about the SQLite database). One way or another you must have set the toggle ON (by accident) in the past and this must have caused it. Please follow Antoineās instructions to fix this. He is only trying to help you. Instead of working against him, try working with him
As said in the past all the forum members had looooooooooooooooooong discussions about this and some where very frustrated, but it really, really, really is fixed. Otherwise you would have seen a lot more angry people on this forum instead of only you 
Thanks Andy! Unfortunately as I described above, the app still have issues its seem developer couldnāt fix all issues. Iāll prove it!
Uninstall AS / delete any remaining files or folders / install again the latest version from website / skip any suggestions and make all settings carefuly / restart / recreate the database, try first with only one folder. I know may be annoying and time consumming but MUST work. That is what Iād do. Iām a Windows user, canāt give Mac instructions but Iām sure this MUST work.
EDIT: I have another idea: In Windows you can make the files read only. You can apply the attribute to all subfolders and files. Iām sure is something similar on Mac. Can take some time if you have a large collection and/or slow speed.
EDIT2: Or set music folders permissions allowing just āreadā.
EDIT3: But since you will do what I wrote I donāt think would be necesary. Hope I helped you!
Hi Antoine, as I promised, here is a 21 min video screen recording about Audirvana bugs.
Please check, I very hope this helps.
Hello @Mark,
AudirvÄna need to have the album title in each track to be able to identify where it can group your tracks in a album. To do that it looks at the metadata of all of your tracks and if some of them do not have a Album title in it, it will take the folder name where they are stored and DISPLAY them like they would be in the same album.
You would probably wonder why it behaves like this and I would tell you that normally, the typical library folder structure is like this: artists, then in each artists will comes their albums.Bbut in your case, itās different since you have done a folder containing multiple albums from multiple artists.
You can totally do this BUT, all of the tracks that do not have the Album title filled in BEFORE the synchronization of AudirvÄna Studio, will be displayed as in the same folder.
So please, can you do a test by removing the synced folder from AudirvÄna Studio and then add a Album title to all of the tracks that are in the same folder before sync it again with AudirvÄna Studio?
I already did , I have added Album titles, on this way works fine. But I can not agree with need Album titles, because EP (maxi singles) not have Album titles.
EPās have titles too:
Here a link to the meta data guidelines page:
Metadata guidelines | Record Union Help Center (intercom.help)
Here a quote from the link above:
If your EPās donāt have album titles you can always make one up yourself and put it in 
Maybe you do not agree, but ff you do not put an album title in the metadata most music player programs will not work properly, because most of them are based on grouping libraries by album title. Audirvana is no exception.
yes, EP have track title not an Album Title
Itās not that complicated is it?
Title (Release Info)
Add only the title of your album/EP/single here, and do not include āalbumā, āEPā or āsingleā in the title (since itās up to us and the music services to decide if your release is an album, EP or single).
If youāre releasing a 1 track single, the release title (incl. version) and the track title (incl. version) must be exactly the same.
