Unable to sync two files

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Posts: 11
Joined: 30 Oct 2018

adios

Hi.

I was using FreeFileSync (v10.12) on Windows 10 to backup my video projects hard drive.
The source drive and the backup drive are both external USB 4TB hard drives (each about half full).
After a backup they should mirror each other.

In FFS I compared 3 of the 4 main folders respectively, and 2 audio files (WAV) showed up on the backup drive requiring an update to the Date Modified.

I was a bit puzzled by why these 2 files would come up because it was a project I hadn't touched in a while. I compared the two files in Windows Explorer, but all seemed the same, except for the Date Modified.
I even played each file to make sure they sounded the same, or to see if maybe one got corrupted somehow. Other than the date, all files seemed to be fine.

So I hit the 'Synchronize' (Mirror) button and the files synced.

Out of curiosity I then hit the compare button again just to confirm that now everything is good.
Surprisingly, those 2 files came up again.
I repeated once more with the same result.
Somehow FFS is not able to overwrite these two files, although I'm not getting any error messages or popups.

Not sure what to make of it.