Denon AVC-X4700H does not detect Dolby Atmos in PC games. Solution?

[JoseSXFIEAX]

I bought the Denon 4700 2 months ago and the games compatible with Dolby Atmos on PC were detected on the panel as Dolby Atmos without problems, but for about 3 weeks instead of Dolby Atmos coming out Multi Ch In comes out and although it sounds I think that the same and detects all channels (5.1.2) the signal is detected as PCM and not as DOLBY ATMOS.
The Receiver is updated to the latest Firmware by Update.
I have tried to find out what the latest firmware is on the Denon website but I can't see where it says it.

What could it be? I see that this problem happens to many people.

 

[famasfilms]

Windows sounds settings

 

[JoseSXFIEAX]

Windows sounds settings

of course in Windows 10 Dolby Atmos is activated at home.