Warning: Some files ... multiple folder pairs

[d.vertz]

New to FreeFile Sync and I don't understand this dialog.

2023-08-16_073754.png (24.72 KiB) Viewed 609 times

From my best guess is its trying to say that I have a file from two sources trying to go to one destination. However, that is not the case. The D:\Public does not contain an Autocad folder.

2023-08-16_084853.png (67.03 KiB) Viewed 609 times

So I have no clue what filters I should add.

FYI: This sync is setup to only write to the FTP, Never to read from.

[xCSxXenon]

That's exactly the problem though! The top folder pair in FFS is going to copy 'AcTpCatalog.atc' to "ftp://xxxx/Public/Autocad/Tool Palettes/", which is fine and exactly what you want.
Here's the problem:
The last folder pair, "D:\Public" mirroring to ""ftp://xxxx/Public/", is going to delete 'AcTpCatalog.atc' from "ftp://xxxx/Public/Autocad/Tool Palettes/" because "D:\Public\Autocad\" does NOT exist. The mirror operation is going to see that "D:\Public\Autocad\" does not exist and will then delete "ftp://xxxx/Public/Autocad/" to make the destination mirror the source.

[xCSxXenon]

My best guess is you can exclude the "Autocad" folder from that bottom folder pair to avoid this

[d.vertz]

Oh! I get it now! That makes perfect sense. Thanks so much.