Doing this I never had the problem you described - not even before the fix. The only method I was able to reproduce the bug was to play until a loading screen (enter the door with the "mill" sign i.e.) and then wait for the music to end without restarting.

That was only the first part of this bug...


also try to start a single player, and next try to restart it, music will not restart

Nop, it works fine here, no problem at all after the fix, quick save and quick load, new levels, different music, try to install this version and see if it works (the gog.com).
Are you using the source port?

Everything works fine on my side.

Reinstalled, still not working properly, with and without compatibility mode...

You are right I forgot that but just tried and nop, music is fine.

If you are you using this game from Galaxy try to use Hexen II folder and launch H2.exe or GLH2.exe from it, i don't know what's happening...

No, I don't use Galaxy, I donwload the installer from here, I tried use H2.exe and worked too, now I installed in other computer with an AMD card and an AMD Processor, but is working fine too, I don't know what it could be the problem, if I find a solution I will let you know!
In the meantime try with the source port (http://uhexen2.sourceforge.net/) to see if that solve your problem for the moment.

"There is no Game" still receive no patches.

No Patch v1.0.29_(45446) (Offline & also Galaxy installers).

No Changelog (well, yes: No Changelog on Gog, but on Steam):

"Patch Notes - 5th March, 2021

Hey all,

Here is a small patch that will further deteriorate the experience!

No Improvements:
The Continue button on the chapter selection will be displayed throughout the progression even if you have just unlocked a new chapter.

No bug fixes:
Fixed synchronization issue between sound and image on some videos.

Have no fun."

Given the running gag this confused the hell out of me ... so does "no changelog" mean "changelog" or is there no changelog for real .... complicated :D

Whoops, sorry, but i could not resist. ;-)

Yes: there is no changelog on Gog, but on steam. :-)

In Source Port there are other problems (with graphics); music works fine...

Only original version has this problem
I'm not playing it from Galaxy but it was installed with that... i think that there is a problem with Galaxy version

I will try soon offline version

edit: same problem with offline version...

Northgard

Updated to 2.4.9.20502 (Galaxy & Offline Installer)

Latest changelog from Discord: (Login required)

Low Magic Age

Low Magic Age has been updated to Version: 0.91.38.5 (Offline installers also updated)

No Changelog