MusicBrainz metadata encoding - incorrect symbols on Jellyfin metadata update

[coolikar]

Hello!

I'm trying to set up Jellyfin as a music library. Jellyfin instance is running in Docker on a Synology NAS.
I have an artist and one album on my NAS, which is stored in the correct folder structure as outlined here https://jellyfin.org/docs/general/server/media/music/ :
- /data/media/music/FliT
-- Світ такий… (2004)
--- FliT - Світ такий… - 01 - Може, ти знайдеш.mp3
--- FliT - Світ такий… - 02 - Вийди, моя люба.mp3
etc.

I'm using Lidarr for management, and the filenames above were directly copied from the NAS file management software (DSM - using Synology).
The folder names are correctly displayed in Jellyfin, but the album name and all the track names are incomprehensible.

   
   

I have MusicBrainz and The Audio DB metadata loaders enabled.
They have been correctly identified:
- https://musicbrainz.org/release/6b53e2a8...a18c91193b
- https://www.theaudiodb.com/album/2403538

The releases in MusicBrainz and The Audio DB have correct track and album names.
However, when Jellyfin loads them and applies to the tracks - they get butchered and the encoding is incorrect.
What could be causing this issue? How should I troubleshoot this?

The last piece of log when I attempted a "Refresh metadata" with "Replace all metadata" option:
  Log.txt (Size: 6.09 KB / Downloads: 27)

Any help would be appreciated.