Using corecdx + kde, 64bit, all updated.
I backup my home dir daily using luckybackup to an encrypted usb disk which is unmounted & disconnected between backups. The backup report always indicates success.
I noticed today that Sunday, Monday & yesterdays backups all resulted in the changed / new files being copied over to the backup drive, but with zero bytes.
The files were gnucash files & logs, files created in kwrite, images from my phone transfered on dropbox. Luckily I can re-create the data, but what happened?
I re-created the data & ran the backup again & it copied all the files ok.
I cannot understand as I always unmount the disk between backups (properly) & it seems to mount ok & i can browse it.