All started with the last windows update, my BlackShark v2 x audio started to fail/lag in some applications, using or not using Dolby atmos. Then I decided to install 7.1 Surrounding sound software and it worked perfectly, until I restarted my PC. I have checked all possible foruns and links about how to fix it, I am not using any Spatial sound in any sound output, and both my 7.1 speaker output and headphone are set to the same frequency.
I also tried to reinstall the software, which worked again until I restarted my pc.