[Milhouse]

"libreELEC settings" - "system" is blank from #0610 to last build, #0609 is OK. is that normal?

No, not normal. If you'd posted your debug log that would help.

It's probably due to a corrupted (or now incompatible) setting of some kind - hard to say without a log. Try deleting the settings and restarting:

Code:

rm /storage/.kodi/userdata/addon_data/service.libreelec.settings/oe_settings.xml
systemctl restart kodi

You'll then need to reconfigure anything you had configured in the Settings add-on (hostname etc.)