[Zubersoft]

I have restored your backup file without issue, so the file itself is fine. So the problem has something to do with the way the Xoro tablet is reading the memory off the internal storage. If you uncheck the option to restore settings, does that help at all? Otherwise I might recommend trying to use the free companion app (https://www.zubersoft.com/mobilesheets/companion.php) to connect to your tablet (tap the three dots at the top right and then "Connect to Companion"), and then you can restore the library using File->Restore Library. I'm not sure if this will make any difference, but it would be helpful to know if it works any differently for you. 

Also, can you please verify that if you go to Settings->About, you are running version 3.4.8 on both of your devices?

Mike