Problem with text encoding

[wifon]

Shuttle version:

v2.0.17

Device, OS:

Motorola G6 Plus, Android 9

Description of bug:

Some Polish diacratic signs from mp3 files I've got are displayed incorrectly. I think that there is some problem with encoding. Here are screenshots from Shuttle on Android:
https://imgur.com/4hOlDJv
https://imgur.com/SmSQKet
https://imgur.com/1QZYXH6

And the very same files in my music player on linux, quodlibet:
https://imgur.com/IE7LL1p
https://imgur.com/Sk9tZNP
https://imgur.com/rO4sKmx

I can send the specific files for inspection on request

Expected outcome:

Just show the letters as it should look like. It wouldn't be much of an issue, if I wouldn't use last.fm scrobbling. This problem, as I've seen so far, only appears on mp3 files, haven't noticed that on FLAC's yet.