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