[Solo0815]

Here are the debug-logs on a fresh installed SD-Card: memorysplit 256/256
#1206
Loading RetroArch with a script from AdvancedLauncher gives the same black screen as before, no change. The Pi does not "hang", I can do a systemctl start kodi to get Kodi again. There must be something wrong when calling systemctl stop kodi from the script in AdvancedLauncher.
http://xbmclogs.com/show.php?id=365192

#1201
same Card as before, I changed only SYSTEM, kernel.img, bootcode.bin and start.elf with the ones from #1201
Loading RetroArch with a script from AdvancedLauncher works. I can play the game, exit the Emu with Select + Start and Kodi loads again.

Now there is only 256MB Memory total detected! I changed nothing in config.txt Why?

Loading a Game with AdvancedLauncher
http://xbmclogs.com/show.php?id=365202
Kodi releoaded after exiting the Emu:
http://xbmclogs.com/show.php?id=365206
only 256MB Memory again

BTW:
the script calling RetroArch is in .kodi/addons/emulator.tools.retroarch/bin/
retroarch.sh calls retroarch.start which exits Kodi and loads RetroArch

the launcher.xml for AdvancedLauncher is in .kodi/userdata/addon_data/plugin.program.advanced.launcher

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OK, thx Milhouse
I'll wait for a fix. Hopefully, we will get one.

The remaining thing is the detected 256MB when replacing SYSTEM, kernel.img, bootcode.bin and start.elf
see the logfiles above