Your advancedsettings.xml triggers a database connection timeout. Remove this config file or fix your MySQL server.
2021-02-02 09:30:01.102 T:1103 ERROR <general>: Unable to open database: MyMusic82 [2002](Can't connect to MySQL server on '192.168.0.30' (101))
...
2021-02-02 09:30:01.107 T:1103 ERROR <general>: Unable to open database: MyVideos119 [2002](Can't connect to MySQL server on '192.168.0.30' (101))Then we need a kodi.log.
Try with WiFi disabled. If the issue persists, use Raspberry Pi OS on another microSD to rule out a hardware defect.
Do you guys recommend a fresh install when going from one LE10 bèta version to another / from bèta to RC1? Or is it okay to update the bèta versions to a newer beta / RC?
If you are coming from any 10.0 version, then the RC1 should work as an update.
Not sure what you want. High quality DSD is working: Click!
It would be great to close of 9.2 development with one final big bang, especially for users of BCM2835 RPis.
To make it clear: RPi 2/3 development is dead on the old kernel, but not in general. Download LE 10.0 nightlies here: Click!
Make sure to install your first LE 10.0 nightly from scratch. Updating from 9.2.x will break software dependencies.
LOLinger78 Please send AVM a FritzBox bug report.
Unfortunately, today, while I was trying another couple of firmware, a power surge due to a storm completely burned the box; it means that he had to die like this .....
God has spoken. 
Create this /storage/.config/autostart.sh instead:
#!/bin/sh
(
pactl load-module module-udev-detect
pactl set-default-sink alsa_output.0.hdmi-stereo
pactl set-default-source alsa_output.0.hdmi-stereo.monitor
) &2021-07-16 17:34:07.514 T:140283718789248 NOTICE: ADDON: bs.crap.addon v0.7.04 installedStop, using banned add-ons. We don't support such systems, and it could be the cause of your issue, too.
Case closed.
HDMI video settings have been moved to cmdline.txt since LE 10.0 Beta.
Use this approach: Click!
HDMI settings have been moved to cmdline.txt since LE 10.0+, using a new syntax.
You probably came to the same conclusion, so this is just for the records:
victorbiederbeck Thanks for pointing me to the dead link. I updated it. We went to a new Wiki, which broke something.
PS: Also urban slang: flex = turntable
PPS: In case you're using LE 10.0+, HDMI settings have been moved to cmdline.txt.
Thanks! Looks like an LE bug. I'll talk about it with a dev.
To my knowledge, ARD and ZDF use different sources for playing on smartphone and desktop. So the out-of-sync add-on may uses the smartphone source. Check whether your downloaded out-of-sync file works on your desktop PC. If it's also out-of-sync there, blame on the content provider (ZDF).
Does anybody work on this feature or is it planned from kodi side?
Get the Kodi side at the Kodi forum. We are just second layer.
Why don't you run Raspberry Pi OS, auto-start Kodi on it, and you're done?
