Hi , after futher research , i found the culprit.
Thanks for your advice , but i've already tested that.
My test protocol was to format my system disk , install only icue and then install and reboot every single app / driver / program folow immediatly by a reboot to check if the headset was still on 8 channels.
So the culprit is kaspersky.
Hope my 6 hours of research might help others with that issue.
if you already have kaspersky installed and got the same exact issue , you do not need to format , just follow these steps :
1 uninstall Kaspersky and all the apps related
2 Go to device manager and uninstall the headset ( thick remove driver)
3 uninstall Icue
4 unplug the headset and the dongle , an turn off the headset (by switching to wired mode
5 reboot
6 Install a fresh icue
7 reboot
8 plug in the dongle and wait for the notification that tell you that's properly installed
9 turn on the headset
10 enjoy a working headset