Permissions are set correctly.
I set "chmod -R 777 .config/smplayer" and nothing changed.
I recorded 3 videos. In video 2 - setting saving. some options saving, some not saving
https://www.dropbox.com/s/hru8neepz52hu ... d.mp4?dl=0
https://www.dropbox.com/s/whbhaj7wa7shk ... 2.mkv?dl=0
https://www.dropbox.com/s/5kt8u3m89kpq2 ... 3.mkv?dl=0
Better download the video (better quality).
P.S - rm -rf ~/.config/smplayer (Does not help)