Thanks, what I´m referring to is issues with for instance Airplay, buffering and other stuff that I have seen causing me issues whenever I went from one version to another.
If you say so. 
Apple Bonjour is a big source of trouble. You've been installed it on your Windows machine together with TuneBlade. Try to find an alternative. Explain your target setup for music streaming, and we will see what we can do. 
LE 10.0.3 runs fine on my RPi3B+.
Nov 29 03:02:46.876670 LibreELEC librespot[851]: *** WARNING *** The program 'librespot' uses the Apple Bonjour compatibility layer of Avahi.
Nov 29 03:02:46.877042 LibreELEC librespot[851]: *** WARNING *** Please fix your application to use the native API of Avahi!
Nov 29 03:02:46.877266 LibreELEC librespot[851]: *** WARNING *** For more information see <http://0pointer.de/blog/projects/avahi-compat.html>
Nov 29 03:02:49.220662 LibreELEC wpa_supplicant[412]: wlan0: Failed to initiate sched scan
Nov 29 03:02:51.374606 LibreELEC pulseaudio[311]: W: [pulseaudio] sap.c: sendmsg() failed: Connection refusedCan you disable Apple Bonjour somehow on TuneBlade?
Also consider to update to LE 10.0.3 (use the .update folder method).
Click "CEC Adapter" on LE's input settings, and disable CEC.
Okay, I'll think about making a topic, but I do not need it, Lakka was built for myself, I just came into this thread to thank the author and report that the tree device building with branch 4.3.
You can open a new thread. Post links to your work, and describe what you do.
Have a look at our Rockchip sub-forum. Seems like LE currently has some issues on OPi 4 LTS.
I think Ubuntu runs fine, and you can autostart Kodi from Ubuntu.
So that's the workaround until LE issues are fixed.
Lakka forks are OK to be mentioned, but this is not the place for constant presence or related dev chat.
It's under development: Click!
Is this a known issue with RPis GPIO and extension cables?
No. The length of the cable has a relation to electrical resistance, and reduces voltage. A stronger PSU can help to avoid such issues.
I built lakka using your sources. Can I post it on the forum?
You can post a link, but don't upload any image.
PS: That means, you can post a link to an image or to sources. Just don't upload any Lakka content on this forum.
Could the issues be connected?
Possible. At first place I think your test file has errors, because I don't have audio with it. Those errors might lead to a re-initialization of the audio sink. If the EDID file is some sort of a map for the audio sink, then it could help to have correct EDID data.
The thread over at Intel mentions something about the EDID. I did try the getedid create script but it does not seem to save the edid correctly.
Line-by-line comparison between RPi and NUC11 shows a difference here:
RPi:
2022-11-15 02:12:25.554 T:655 INFO <general>: CDVDVideoCodecDRMPRIME::Open - using decoder V4L2 mem2mem H.264 decoder wrapperNUC11:
2022-11-12 14:41:40.389 T:960 INFO <general>: CDVDVideoCodecFFmpeg::Open() Using codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10So maybe DRM Prime is necessary to play the file correctly.
PS: Click the gear icon on the playback bar. Under video settings search for DRM Prime, and switch it on / off. I'm not sure about the existence of this setting on current x86 builds, because I can only test on RPi.
Upgrading from 9.x.x to 10.x.x will break dependencies. Please install LE 10.0.3 from scratch.