Never get 100% match since upgrading to 2.4.0

[JoeDat]

I've been using beets for years. I recently upgraded to version 2.4.0 and I've noticed that I now never get a %100 match when using the autotagger. The best I seem to get lately is 93.6%. I can even use beets to retag an album, then attempt a reimport of the same album and still only get to 93.6%. I'm seeing this on new album imports, as well as retagging imported albums on past beets versions. I'm unsure how to troubleshoot what is wrong. The output showing me the differences is unclear.

EDIT: Rolled back to v2.3.1, and my matches are back to 100%. The difference seems to be the source. I don't know what that is, as it's not indicated in the output. Is there way for verbose difference output? In the case of tracks, sometimes I get clear detail (like title, length, missing tracks,. etc.). Other times, it just says "tracks" are different, but doesn't show what's different. I don't ever see where the "source" differences are

Example below. Typically I see it finding differences with the tracks and the source. I don't know what it can't match with the tracks, nor do I know what "source" means in this context.

Verbose output:

joe@fedora:/mnt/music/Genesis$ beet -v import -I .
user configuration: /home/joe/.config/beets/config.yaml
data directory: /home/joe/.config/beets
plugin paths: []
Loading plugins: badfiles, chroma, edit, embedart, fetchart, fromfilename, info, inline, lastgenre, lyrics, mbsync, missing, replaygain, scrub
lastgenre: Loading whitelist /home/joe/.local/lib/python3.13/site-packages/beetsplug/lastgenre/genres.txt
fetchart: lastfm: Disabling art source due to missing key
fetchart: google: Disabling art source due to missing key
inline: adding item field multidisk
Sending event: pluginload
library database: /home/joe/musiclibrary.blb
library directory: /mnt/music
Sending event: library_opened
Sending event: import_begin
Sending event: import_task_created
Sending event: import_task_start
Looking up: /mnt/music/Genesis/A Trick of the Tail
Tagging Genesis - A Trick of the Tail
Searching for discovered album ID: b28c0750-01eb-3938-959a-470ccaedc71c
musicbrainz: Requesting MusicBrainz release b28c0750-01eb-3938-959a-470ccaedc71c
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_album_extract
Sending event: albuminfo_received
Candidate: Genesis - A Trick of the Tail (b28c0750-01eb-3938-959a-470ccaedc71c)
Computing track assignment...
...done.
Success. Distance: 0.06
Album ID match recommendation is 2
Search terms: Genesis - A Trick of the Tail
Album might be VA: False
musicbrainz: Searching for MusicBrainz releases with: {'release': 'a trick of the tail', 'alias': 'a trick of the tail', 'tracks': '8', 'artist': 'genesis'}
Sending event: import_task_created
musicbrainz: Requesting MusicBrainz release 6110560b-e3b6-4033-9ff0-32d539fc0e31
Sending event: import_task_created
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_album_extract
Sending event: albuminfo_received
Candidate: Genesis - A Trick of the Tail (6110560b-e3b6-4033-9ff0-32d539fc0e31)
Computing track assignment...
...done.
Success. Distance: 0.45
musicbrainz: Requesting MusicBrainz release eae8376d-f9ca-4d41-b490-bfa04f5a4129
Sending event: import_task_created
Sending event: import_task_created
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_album_extract
Sending event: albuminfo_received
Candidate: Genesis - A Trick of the Tail (eae8376d-f9ca-4d41-b490-bfa04f5a4129)
Computing track assignment...
...done.
Success. Distance: 0.24
musicbrainz: Requesting MusicBrainz release 24838efc-ca9c-4979-8baa-5604270218ca
Sending event: import_task_created
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_album_extract
Sending event: albuminfo_received
Candidate: Genesis - A Trick of the Tail (24838efc-ca9c-4979-8baa-5604270218ca)
Computing track assignment...
...done.
Success. Distance: 0.45
musicbrainz: Requesting MusicBrainz release d63a0ec6-2eaf-4054-96df-dcb26596a2db
Sending event: import_task_created
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_album_extract
Sending event: albuminfo_received
Candidate: Genesis - A Trick of the Tail (d63a0ec6-2eaf-4054-96df-dcb26596a2db)
Computing track assignment...
...done.
Success. Distance: 0.28
musicbrainz: Requesting MusicBrainz release 5692a8f0-0e3c-45cc-a27e-af01ae3ee088
Sending event: import_task_created
Sending event: import_task_created
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_track_extract
Sending event: mb_album_extract
Sending event: albuminfo_received
Candidate: Genesis - A Trick of the Tail (5692a8f0-0e3c-45cc-a27e-af01ae3ee088)
Computing track assignment...
...done.
Success. Distance: 0.46
Evaluating 6 candidates.
Sending event: import_task_start
Looking up: /mnt/music/Genesis/Abacab
Tagging Genesis - Abacab
Searching for discovered album ID: f7aca484-cc0a-465f-a0d6-930682da563c
musicbrainz: Requesting MusicBrainz release f7aca484-cc0a-465f-a0d6-930682da563c

/mnt/music/Genesis/A Trick of the Tail (8 items)
Sending event: import_task_before_choice
Sending event: before_choose_candidate

  Match (93.6%):
  Genesis - A Trick of the Tail
  ≠ tracks, source
  MusicBrainz, 12" Vinyl, 1976, GB, Charisma, CDS 4001, None
  https://musicbrainz.org/release/b28c0750-01eb-3938-959a-470ccaedc71c
  * Artist: Genesis
  * Album: A Trick of the Tail
➜ [A]pply, More candidates, Skip, Use as-is, as Tracks, Group albums,
Enter search, enter Id, aBort, eDit, edit Candidates?

[JoeDat]

Opened issue #6080, based on upvotes here suggesting I'm not alone in seeing this.