Libreelec restore backup doesn't work

hey
I just setup Kodi to my needs and created a Libreelec backup.
Then I reinstalled libreelec to test it, went to System -> Libreelec -> restore backup, chose my file and everything looked fine (no errors).
Unfortunately after the automatic reboot nothing has changed (absolutely nothing)

Is the backup function currently broken on Libreelec 7.0.2?
If you need some logs please tell me which one.

Best regards

Quote from DaVu

The quetion might be if the backupped zip (IIRC it is a zip file) contains something or not and if yes, what does it contain? If it doesn't contain anything then it might be easier to find out where the issue is. If it contains the correct files, then it's not the backup which fails, but then it's the restore.

Would be nice if you could check that, horstepipe.

Sure
it is a .tar file and it looks like everything is there:
backup.tar (I renamed it from 20161019.tar or something like this)
--> storage (folder)
--> .cache (folder)
--> .config (folder)
--> .kodi (folder)

All folders are filled with more files and folders, in .kodi folder everything is on its place (addons, addon_data, settings I created)

Any specific file/folder you are looking for?

Quote from lrusak

Don't rename the file

you can see here, service.libreelec.settings/system.py at master · LibreELEC/service.libreelec.settings · GitHub

so the filename needs to be 15 characters + the .tar at the end.

sometimes it can be that easy

Thanks to all of you for support,
best regards
[hr]
will I run into trouble using this backup for other Raspberries (same model) because of the "machine-id"?