FreeFileSync Forum

I suspect the data corruption mentioned in the error message was existing already in the old FFS version from before your update, and only became apparent after the more stringent checks of the new FFS version kicked in. I'm still pretty sure this error message cannot happen with the latest FFS ...

Can you get a screenshot of that message about common sessions? I have never seen that. I wonder if a change to how FFS compares/syncs paths is causing it. That is a large update gap

Here it is (sorry for the delay, I was away from my Desktop).
https://lh3.googleusercontent.com ...

This error shouldn't be possible™. Can you describe how exactly you handled the sync.ffs_db files (e.g. copied manually, etc.).

Which version of FreeFileSync have you been using prior?


I didn't do anything specifically with sync.ffs_db files, but here is the full story:
This DesktopW7--extHDD ...

Check smart data of each drive with Gsmart control. That will eliminate a storage issue. FFS is running on both the desktop and laptop in two-way mode?


for external HDD SMART is unsupported
for both laptop and desctop HDDs SMART is supported, enabled overall health self-assessment test passed ...

Hi,
At every synchronisation I get error message that dtabase is corrupted (multiple common sessions found). After I ignore it the database files on both devices are updated, but at the next synchronization I get this message again. And there are problems with detection of moved files since I ...