Sound issue with surround sound

[Hakiki]

OK, I have run into an issue that I need some help to hopefully solve.

I run VM Potato (same issue happens in Banana), set it as the Windows default sound output, and direct the sounds to my headset ouptut which is a headset with 7.1 virtual surround. I am able to hear all 8 channels through my headset, all of them in the correct "direction". However whenever I hear anything on the "surround channels", the volume level of the first two channels drops noticeably. This typically means my music levels lowers/raises randomly when I play games due to the surround effect present in game. Whenever the sound/noise on the surround channel stops, the sound level of the 2 "main" channels come back to the original volume in 7-8 seconds. It happens with all sounds coming through on those channels, but it's typically with music I find it the most disturbing as music is a continuous thing. Happens both with playing from youtube, spotify, winamp, etc.

Is this a common/known issue that anyone might know a possible solution to?
For trouble shooting I made these screen shots of what I think might be relevant program settings, if anyone can find any clues to something I've done wrong please let me know:

https://i.imgur.com/YGZ2sNK.png
https://i.imgur.com/kcNhSUf.png
https://i.imgur.com/18JQRTB.png
https://i.imgur.com/munflK3.png
https://i.imgur.com/dJgE7Im.png
https://i.imgur.com/fnpZicO.png

I can't change from 16 bit since the headset software enforces that (Corsair Void Pro RGB) and without the software they won't work with surround at all. But using the headset directly as windows output it works perfectly fine.

If anyone has any knowledge, ideas, or simply guesses I would love to hear them cause at this stage I'm at a loss for what to try/check next.

Thank you

[Hakiki]

Apologies for the bump, but does anyone have any clue what could be wrong here? I am at a loss whether it's my Windows, my VM settings, my headset simply being incompatible, or anything else. At this point I'd be happy if anyone with the slightest of ideas could throw possible solutions my way so I can hopefully keep troubleshooting and find a solution that works, or otherwise call it quits and just accept that I will not be able to use the VM-software. Thank you all.

[Vincent Burel]

well, you may check your Voicemeeter config...
we see a potential feedback loop, between the output A3 -> CABLE input
and your physical input 2 getting audio from the CABLE output.

in other words, your output A3 is coming back to Physical input 2 (not usual).