Im using LibreELEC-RPi2.arm-11.0-nightly-20220530-2d50f5f on one of my Pi4 4GB and i have no audioproblems.
Just dropped the image in Update-folder and rebooted.
Just tested downgrade to LibreELEC-RPi4.arm-11.0-nightly-20220529-614dab2, still getting working audio.
And some files are 0 B...
My Pi 4 4GB with 2022-05-03 nightly running for 52 hrs now, still as snappy as when first started.
Im using a Pi4 8GB with Openmediavault 6 and 2 external enclosures through USB3, 1 with 2x6TB and 1 with 2x8TB.
Same problem with Pi 4 4GB and LibreELEC-RPi4.arm-11.0-nightly-20220323-9390f49
LG 65CX and certified cable, no problems with other 4k 10bit HDR files.
Download the image, drop it in "Update"folder and reboot your Pi.
Etcher is a good program to burn images to sd-cards and such.
HBO quality sux on all platforms.
A major problem with CEC is that almost every manufacturer has its own implementation or standard.
The AVC codec might give a clue.
Im running RPi4.arm-11.0-nightly-20220212-d203600, no reboots, very stable.
Raspberry Pi 4.
.mkv is just a container, the video can be of multiple origin, get the media info while playing it, it could be VC1 or something not supported.
Not all Sata to USB-adapters work, i have 4 that do work and 4 enclosures for M2 SSD that works, i probably returned at least 5 that didnt.
I have 4 of https://osmc.tv/store/product/osmc-remote-control/ they are perfect.
