Mirror ->: Time Stamp Mismatch

[projectmaria]

OS = Windows 10 Pro 1909
FFS = 10.18 - Unicode x64
Sync Method = Mirror, File Time and Size (Left Side --> Right Side)
Source: Internal NTFS Drive
Destination: Internal NTFS (BackUp) Drive

I've been having this issue and troubleshooting for quite sometime now and I can't find a solution. I didn't have this issue on the earlier version of FFS.

Everytime I sync/mirror my files, to my backup drive, the file timestamp for some of the files is the time when I did the synchronization and not the timestamp of the original/source file hence the right side is newer.

FFS.PNG

I analyzed the properties (readonly, archived, locked, etc.) of the files but I didn't see anything unusual.
Just to troubleshoot, I sync'd the same files to another destination like my Synology NAS and there was no problem.

I'm out of ideas.

[Zenju]

Maybe it's caused by one of these:
https://freefilesync.org/faq.php#different-after-sync