Since a few weeks I am experiencing this issue:
Backup starts and sometimes (apprx 1 out of 4 backups) after a short while I get the notification, that the SD card is corrupt and the phone suggests to format it. When I am performing a restart after the backup, all is fine. Also the data on the SD card is still fine.
I already moved backup location to the phone. Doesnt fix it. But at least then the backup finishes successfully. Before (when backup location was the SD card) it didnt finish successfully.
For me it looks like some issue after the backup from murena cloud only has been brought back to a seedvault like local backup (next to the murena cloud version).
Does anybody experience the same issue? I cannot find anything anywhere. Thanks a lot in advance!