Hello guys

I have a little problem with audio outputs via HDMI. I am kind of guy who like to do all by myself. But I've been struggling with this almost months (sometimes it work sometimes don't {I tested it on 4 different PC})

I need multiple audio outputs for our show and one of it need to be via HDMI for preview monitor for clients. But when I go to settings I always find multiple choices for HDMI even though I have only one HDMI pluged and one DVI (just monitor for work with vMix)
on the pictures below you can see multiple HDMI options and I tried all of them one by one but none of them works (all drivers are actual, even tried with newly installed PC)
audio outputs2.png (129kb) downloaded 7 time(s).
audio outputs1.png (115kb) downloaded 1 time(s).

But when I set it to Default Windows Playback Device it works, but it's not comfortable for me, because I need to use default playback for windows on realtek because of monitoring landing page etc.
audio outputs3.png (129kb) downloaded 0 time(s).

If anybody got some ideas or solutions I would be greatful

That's the funny thing, the HDMI is pluged into NVIDIA graphic card.

When i tried the external render it worked of course.

I found one solution but it's not that comfortable for me. Everytime even if I didn't unpluged the hdmi I need to go to windows audio settings and rename the HDMI output to whatever and then it works until I shut down my pc then I need to rename it again eventho it's all can be seen in vMix audio output options.

This work at least on PC, when I try the same steps on laptop then it's not working