I got a new SD card that I wanted to use for my Libreelec 8.2.5 (it was updated to that version, don't know is that is of importance) which is running on a Pi3+. I initially installed the system on my old Pi3 and just swapped the SD card to the new Pi 3+.
I went into the Libreelec settings and created a system backup on a flash drive. I took the new SD card and installed Libreelec 8.2.5 and tried to restore the system backup of the old SD card. Unfortunately I get an error (when rebooting the pi to write the data) telling me that the backup file is not valid or corrupted. I did not change the name of the backup file or anything else. Am I doing something wrong or is this a bug.