5.1 and 7.1 do not work

Hello, first of all my English is not very good because I’m Brazilian, but surely you will understand.
Me and a lot of people, are having the same problem, the sound of the game is coming out stereo, 5.1 and 7.1 do not work, especially on those who have Logitech.
Headset - G933
Version of the LGS - 9.02.65
FH4 version - last
Windows 10 - Last version
In the first two intros, the sound comes out normal, but then … Back to stereo. I already tried to reinstall the driver, but nothing solved. Even that ‘’ solution ‘’ that is in the forum about configuring the bits etc … also did not solv