[Bug] (Combat!) Sound FX breaks due to music mod

[Crygreg]

So, when I managed to create music mods, at first there were barely any issues.
Then, when I started to create modules and delved into combat music, there appear to be issues with that part, as users have reported that it breaks combat SFX, despite the fact that I used pretty much 1:1 the settings that CDPR used for compilation, conversions etc. but even after switching the settings around a bit and back again it didn't do anything.

On my end, the issue doesn't appear consistently but rather randomly. Sometimes the combat SFX gets muted entirely, sometimes it's still there, sometimes the volume is simply lowered a bit.

To Reproduce
Steps to reproduce the behavior:

1. Add any combat track(s) to the game, specifically Velen (since it seems to be the most issue-heavy area), add them to the playlist (no replacing needed).
2. Compile soundbanks.
3. Cook Mod Sounds (if they work, see my other bug report) or otherwise cook soundbank(s)
4. Check ingame

Expected behavior
Combat SFX should still play out with normal, user-based volume and not be muted because of the new combat music.

Here is a video that portrays the issue well:
https://streamable.com/0p7odc

[Crygreg]

Here's a video of my steps I did (old recording but hopefully still applies):
https://www.youtube.com/watch?v=nBjOKY97J6M

Since I already added the music, just notice when I waggle the mouse around basically.