Perhaps we're talking about different issues: when I'm turning off the whole SP game with alt+F4, then go back to JCS and click ctrl+R to run it again, the music is set to mute. I have to go to the menu and set back the volume. The volume of the sound effects is always fine though.


Additionally: I finally know why the JJ2+ didn't work on my Linux: I have safety settings that do not allow any other program to use my wifi unless it's my internet browser. So it turned out that JJ2+ requires internet connection, otherwise it won't run at all. I double checked that on the Windows 10 laptop: when I turned off the wifi I could not run JJ2+. Is there any solution to that? It's especially annoying because I never play online.


And one last thing: some music files do not run. for example neve.s3m never plays in any level. Pretty strange thing. I just get the silence.