5.3 (build 4568) Special Characters

Having problems with special characters.
If song name is: Sanni - Että mitähän vittua
Cannot see that song in UI.
I'm wonderin that Is this problem with Subsonic or Linux in Google Cloud?
Shell:
-rw-r--r-- 1 subsonic subsonic 9795868 Feb 10 23:05 Sanni - Ett? mit?h?n vittua .mp3
WinSCP: Sanni - Että mitähän vittua.mp3
If song name is: Sanni - Että mitähän vittua
Cannot see that song in UI.
I'm wonderin that Is this problem with Subsonic or Linux in Google Cloud?
Shell:
-rw-r--r-- 1 subsonic subsonic 9795868 Feb 10 23:05 Sanni - Ett? mit?h?n vittua .mp3
WinSCP: Sanni - Että mitähän vittua.mp3