FromFilename Plugin don't work at all

[migrgh]

I have flac files without any tags but the folder and file naming are good.

The ARTIST and ALBUM is on musicbrainz and show up after manual search.

I don't know if there's need of more PATTERNS or if it because the plugin don't consider the track as empty ?

Foldername: ARTIST - ALBUM
Filename: 01 ARTIST - TRACK.flac

metaflac --list 01 ARTIST - TRACK.flac

METADATA block #0
  type: 0 (STREAMINFO)
  is last: false
  length: 34
  minimum blocksize: 4096 samples
  maximum blocksize: 4096 samples
  minimum framesize: 14 bytes
  maximum framesize: 10805 bytes
  sample_rate: 44100 Hz
  channels: 2
  bits-per-sample: 16
  total samples: 6920760
  MD5 signature: 
METADATA block #1
  type: 4 (VORBIS_COMMENT)
  is last: false
  length: 47
  vendor string: reference libFLAC
  comments: 0
METADATA block #2
  type: 1 (PADDING)
  is last: true
  length: 8192

beet -vv import ARTIST - ALBUM

user configuration: /home/user/.config/beets/config.yaml
data directory: /home/user/.config/beets
plugin paths: /home/user/git/beets/beetsplug
Sending event: pluginload
library database: /home/user/.config/beets/beets.db
library directory: /home/user/musik2
Sending event: library_opened
Sending event: import_begin
Sending event: import_task_created
Sending event: import_task_start
fromfilename: Title replaced with: ARTIST - TRACK
fromfilename: Track replaced with: 1
Looking up: /home/user/musik2/ARTIST - TRACK
Tagging  - 
No album ID found.
Search terms:  - 
Additional search terms: {'year': 0, 'label': '', 'catalognum': '', 'country': '', 'media': ''}
Album might be VA: True
Evaluating 0 candidates.

/home/user/musik2/ARTIST - TRACK (1 items)
Sending event: import_task_before_choice
Sending event: before_choose_candidate
No matching release found for 1 tracks.
For help, see: https://beets.readthedocs.org/en/latest/faq.html#nomatch
➜ [S]kip, Use as-is, as Tracks, Group albums, Enter search, enter Id, aBort? B
Sending event: import
Sending event: cli_exit

Important here are the two line

fromfilename: Title replaced with: ARTIST - TRACK
fromfilename: Track replaced with: 1

ARTIST - TRACK arent't the Title(TRACK) of course so the plugin don't even interest in ARTIST!?

Setup

beets version 1.6.1
Python version 3.13.1
plugins: fromfilename

My configuration (output of beet config) is:

library: ~/.config/beets/beets.db
directory: ~/musik2/
threaded: yes
import:
    write: yes
    copy: no
    resume: no

musicbrainz:
    enabled: yes
    host: musicbrainz.org
    https: yes
    extra_tags: [year, catalognum, country, media, label]

plugins: fromfilename

pluginpath:
    - /home/user/git/beets/beetsplug/

Thanks !