Versioning creates unnecessary empty folders?

[windhund]

I am pretty happy using FreeFileSync on Windows 10 to synchronize (mirror) my documents to a cloud provider using the versioning feature. While this works very well, I noticed that FFS creates a lot of empty folders in the versioning folder (in my case ....\sync_revisions - see attachment).
It does that in two cases:
(1) when a new file is created in a monitored folder. This does not make sense to me as this file is already synchronized to the main destination folder (as it should), but should not be in the versioning folder as it is not deleted, moved or renamed.
(2) when a file is deleted that is filtered out. The filtered file should not synchronized, but it should also not create an empty folder in the versioning folder.

I think in any case FFS should never create empty folders in the versioning folder, but only if there is file to be put there.
Did someone else observe this behavior? Did I overlook something here?
Thanks a lot.

[windhund]

Any idea anyone?

[Zenju]

FreeFileSync automatically deletes empty versioning folders. Perhaps in your case, the folders are not actually empty and contain hidden files?