Ugoos x4q pro no sound

I dont get sound in coreelec when i connect it to my pioneer receiver. I have tried all hdmi inputs. I run the newest stable build on a sdcard. No problem installing it. When i do that i have it connected to a simple monitor with built in speakers. The sound works perfect (gui sounds) and in movies (stereo) but when i connect it to my receiver. There is no sound att all. No gui sounds or movie sounds. I have tried restart the box. Install a nightly build, try all audio output options in kodi. Tested audio passthrou options. Tested 3 different hdmi cabels.Same problem. When i remove the sd card and boot Android i have sound. I dont get whats wrong? I need help
My setup box-reciever-projector.

Update.
I have now tried to connect it to a second reciver (yamaha). Same problem. No sound in gui. When i connect it to a TV it works. What can be the problem? Dont find this problem in the forums. Where do i start to try to solve this?

Update.
Ran nexus build. Same problem.
Do we have someone that own a x4q pro that this work for?

So device basically works just not with receiver? Then look there for the issue.

Yes, thats correct.
i have tried it with 2 diffrent receivers.
HDMI in to the rv and then to a projector.
The sound works in the receiver when i boot up android
The reciver work just fine with shield tv,chromecast and xbox.

Are you using CEC?
If yes, maybe try to change CEC mode under Settings/System/Input/Peripherals/CEC Adapter → CEC client device mode.
Possible options: Recording Device, Playback Device, or Tuner Device
If not, I suggest to check CE audio settings vs. Receiver capabilities

Tried all that. same problem

Box: Ugoos 4xq Pro
Memory: 4G
Display type: Projector Epson tw7000
Reciever: Pioneer VSX-S510
Surround System 5.1
Connections: 4xq hdmi - Reciever - hdmi Projector
Build: CoreELEC-Amlogic-ne.aarch64-21.1.1-Omega-Generic.img
Device tree: sc2_s905x4_ugoos_x4
Sd card: SanDisk extreme PRO 64GB
Boot method: SD Card
Audio output device: ALSA:AML-AUGESOUND, HDMI
Passthrough output device: ALSA:AML-AUGESOUND, HDMI

System Log: https://paste.coreelec.org/HiltonHighway
Dispinfo: https://paste.coreelec.org/ExtentGator

In dispinfo it says
“audio source: SPDIF”
Should it not say HDMI? or im i missing something?

Booted up Android and installed kodi.everything works as it should there. All audio works perfect.
Switched back to coreelec and same problem.

I have the same experience with Homatics Dune R 4K Plus.
AVR powered on → started box = sound works
AVR powered off → started box = no sound.
AVR powered off → started to Android = sound works.

Just bought due to Dolby vision but this is I did not expect

Tested with different CE version, settings, no result.
Of course, on AVR is passthrough HDMI enabled and when I use box X96MaxPlus, everytime no issue with the sound.

I am sure it has something to do with the Coreelec.
Can I expect some fix from Coreelec or sell the box?

Thank you